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SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)

 SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Product Code: ALM • Brand: AMSOIL

The Top Tier of AMSOIL Synthetic Motor Oil. AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.

• 50% more cleaning power vs. AMSOIL OE Motor Oil
• Ideal for turbos & direct injection
• Guaranteed protection for up to 25,000 miles or 1 year

Package sizes include:

Quart Bottle
Gallon Bottle
30-Gallon Drum
55-Gallon Drum

See Pricing or Place an Order
MSDSData Sheet

Product Details

Product Applications

AMSOIL Signature Series Synthetic Motor Oil is excellent for use in all types of gasoline-fueled vehicles. It is recommended for all domestic and foreign vehicles requiring any of the listed performance specifications:

Product Application Specs

• API SN (Resource Conserving), SM
• ILSAC GF-5, GF-4
• ACEA A1/B1
• Ford WSS-M2C945-A, WSS-M2C930-A
• Chrysler MS-6395
• GM dexos1 Gen 2 (supersedes 6094M) Fortified with detergents that exceed dexos1™ GEN 2 sulfated ash specifications.

Product Description

AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines. It withstands the stress of higher horsepower, higher heat and complicated emissions control systems. Signature Series Synthetic Motor Oil is engineered to outperform competitive conventional and synthetic motor oils. It delivers long-lasting performance and protection.

AMSOIL, the leader in automotive synthetic lubrication, produced the World's first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, the First in Synthetics®, to do the best job protecting your engine.

Protects Against Engine Wear

AMSOIL Signature Series Synthetic Motor Oil develops a strong fluid film that keeps metal surfaces separated while its robust anti-wear additives further reduce wear in metal-to-metal contact regions for maximum engine life. The Sequence IVA Engine Test, which must be passed to meet the industry-standard API SN specification, simulates extended periods of stop-and-go driving.

For 100 hours, the test engine cycles between 50 minutes of idling and 10 minutes of elevated rpm - conditions that encourage engine wear. The camshaft is then measured for wear in 84 locations and an average score is determined. We used Signature Series 0W-20, the lightest viscosity in the line, to further increase the severity of the test. AMSOIL Signature Series Synthetic Motor Oil provided 75 percent more engine protection against horsepower loss and wear* than required by the industry standard, extending the life of vital components like pistons and cams.

Cam Lobes Wear Test - AMSOIL SS reduces cam wear
sequence IVA engine test results
*Based on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification.

Protects Pistons from Low-Speed Pre-Ignition (LSPI)

We armed Signature Series with an advanced detergent system that protects against harmful deposits and low-speed pre-ignition (LSPI). Most new engines feature gasoline direct injection (GDI), often combined with a turbocharger to boost power and improve fuel economy. These new technologies, when combined with a poorly formulated motor oil, promote LSPI and threaten engine operation. LSPI is the spontaneous ignition of the fuel/air mixture prior to spark-triggered ignition. It occurs in today's advanced engines and is much more destructive than typical pre-ignition.

Original equipment manufacturers (OEMs) like GM* have addressed the issue by designing tests to determine a motor oil's ability to prevent LSPI. The GM test allows up to five LSPI events to receive a passing score. Signature Series Synthetic Motor Oil provided 100 percent protection against LSPI* - zero occurrences were recorded.

LSPI piston damage when competitors motor oil is used

Protects Turbochargers

Our unique synthetic formulation is inherently stable to resist oxidation and neutralize acids. Signature Series Motor Oil provides outstanding protection against deposits common to high-temperature engine environments. The tremendous heat and stress turbos create can cause some oils to break down and form harmful bearing deposits through a process known as turbo coking. Over time, turbos can suffer reduced performance or fail altogether.

We challenged Signature Series to the GM Turbo Coking Test, which consists of 2000 cycles of extreme heat soaks. An oil must limit the temperature change within the turbocharger to 13 percent or less to pass the test. Signature Series limited the temperature increase to only 3.6 percent, protecting the turbocharger 72 percent better than required* by the GM dexos1® Gen 2 specification.

amsoil turbo bearing shaft protection

Extends Drains: Protection Guaranteed

AMSOIL Signature Series 25,000 miles drain interval technologyAMSOIL Signature Series Synthetic Motor Oil provides reserve protection, allowing you to go longer between oil changes if you choose up to 25,000 miles, 700 hours of operation or one year, whichever comes first*. Our unique synthetic formulation and long-drain additive system are inherently stable to resist oxidation and neutralize acids over longer periods. Signature Series is designed to deliver outstanding engine protection, cleanliness and performance over extended drain intervals - guaranteed. It provides peace of mind so you can fit oil changes into your schedule.

Oil Filter:

Any brand of oil filter may be used with Signature Series Synthetic Motor Oil. For maximum convenience, however, use an AMSOIL Ea® Oil Filter. Made of fully synthetic media with greater filtering efficiency and dirt-holding capacity than conventional filters, Ea Oil Filters are recommended for 25,000 miles/12 months or 15,000 miles/12 months, depending on application, which coincides with Signature Series' once-a-year drain interval. While Signature Series' 12-month service life remains intact if a non-Ea Oil Filter is used, the filter must be changed according to its manufacturer's recommendations.

Trusted by Professional Engine Builders

Engine Masters ChallengeDedicated engine builders and mechanics put in long hours honing their craft. These architects of powerful, high-performance engines turn to Signature Series to protect their passion.

"When we use AMSOIL, I don't worry about a film breakdown or an oil breakdown - and the oil pressure is always consistent. We've tested oils back-to-back on the dyno in our shop and we're always able to make more power with AMSOIL."

-Brett Bowers, Engine Masters Competitor and Professional Engine Builder

Maximum Cleaning Power to Battle Sludge

AMSOIL Signature Series offers Maximum Cleaning Power to Battle SludgeAMSOIL Signature Series Synthetic Motor Oil has 50 percent more detergents* to help keep oil passages clean and promote oil circulation.

Engine failures due to sludge are often caused by a plugged oil pick-up tube screen - the motor is effectively starved of oil. The Sequence VG Engine Test measures an oil's ability to prevent sludge. During the test, a Ford 4.6L engine is subjected to sludge-inducing conditions for 216 hours. The industry standard allows for 10 percent blockage before the motor oil fails the test. Signature Series produced a screen virtually free from sludge (see image). Its detergent and dispersant additives are so effective, Signature Series provides 90 percent better protection against sludge.

• *Based on independent testing of AMSOIL Signature Series 5w-30 motor oil, in the LSPI engine test as required for the GM dexos 1® Gen 2 specification.
• *Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.
• *vs. AMSOIL OE Motor Oil
• *Based on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil screen plugging as required by the API SN specification.
* All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

Preserves Horsepower

The extreme durability of Signature Series Motor Oil ensures your engine runs stronger, for longer. We installed Signature Series 5W-30 Synthetic Motor Oil in a Ford* F-150 with a new 3.5L Ecoboost engine to test its ability to protect turbocharged direct-injection (TDGI) engines from torque and horsepower loss during extended drain intervals up to 25,000 miles. Power sweeps were done at the beginning and end of the test to evaluate horsepower and torque retention. As the graph shows, Signature Series helped maintain engine performance throughout the 100,000 mile test.

horsepower degradation test results

Limits Oil Consumption

Signature Series has a uniform molecular structure that limits evaporation and keeps it where it's needed most - protecting your engine. Volatility (burn-off) occurs when oil gets hot, causing lighter molecules to burn off or evaporate. This leads to oil thickening, additive imbalance, higher emissions and oil consumption. The NOACK Volatility test is the industry standard for evaluating motor oil high temperature evaporation. It measures the percentage of burn-off after a motor oil is placed under constant airflow at 482°F for 1 hour. A lower number indicates a better resistance to evaporation. Signature Series falls far below the API limit for volatility, reducing the need for frequent oil top-offs and limiting vehicle emissions.

noack volatility test results

Easier Cold-Starts

Signature Series Synthetic Motor Oil does not contain paraffins (wax) and stays fluid in temperatures of -58°F and lower. Extreme cold causes other motor oils to thicken, starving vital moving parts of lubrication, accelerating wear and even preventing vehicles from starting. Signature Series provides 66 percent better cold-temperature performance for easier starting, better fuel economy, improved oil flow (as seen below) and reduced wear.

pour point test results

Maintains Protective Viscosity

We formulated Signature Series with superior thermal durability that resists breakdown better than conventional and synthetic motor oils. The Sequence IIIH Test uses the Chrysler 3.6L Pentastar engine to evaluate a motor oil's ability to resist the damaging effects of heat. The test is conducted with oil temperatures of 304°F, 100°F hotter than normal operation, to accelerate oil thickening and deposits. Despite the extreme conditions, Signature Series kept pistons clean and held thickening to only 6 percent, a minimal amount compared to the proposed specification limit of 150 percent*. This stay-in-grade performance helps maintain maximum power and fuel economy while also ensuring advanced technologies like variable valve timing (VVT) operate as designed throughout the entire drain interval.

sequence III-H test results

• *Based on proposed ILSAC GF-5 Plus specification.
*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

SERVICE LIFE

Normal Service: Up to 25,000 miles, 700 hours of operation or one year, whichever comes first, in personal vehicles not operat-ing under severe service.

Severe Service: Up to 15,000 miles, 700 hours of operation or one year, whichever comes first. Severe service conditions include commercial or fleet vehicles; excessive idling; or frequenttowing, hauling, plowing or driving in dusty conditions.
• Modified engines (non-stock), racing vehicles and vehicles using alternative fuels (E85, CNG, propane, etc.) are excluded from extended drain interval recommendations.
• Change at the vehicle manufacturer's recommended drain interval outside U.S. and Canada.
• AMSOIL Ea® Full-Flow Oil Filters are designed for extended drain intervals. Do not exceed 12,000 miles or one year with other brand filters unless longer intervals are recommended by the vehicle manufacturer. Always change filter when changing oil.
• Check oil regularly to maintain proper fill levels.

AMSOIL Ea Full-Flow Oil Filters stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea Full-Flow Oil Filters.

COMPATIBILITY

AMSOIL Signature Series Synthetic Motor Oil is compatiblewith other conventional and synthetic motor oils. Mixing other oils with AMSOIL motor oils, however, will shorten the oil's life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils.

HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).

Click here to view the MSDS Data Sheet for AMSOIL ALM.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

Technical Data

TYPICAL TECHNICAL PROPERTIES
Signature Series 5W-20 Synthetic Motor Oil (ALM)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)8.8
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)50.6
Viscosity Index (ASTM D-2270)153
CCS Viscosity, cP @ (°C) (ASTM D-52934385 (-30)
Flash Point °C (°F) (ASTM D-92)220 (428)
Fire Point °C (°F) (ASTM D-92)244 (471)
Pour Point °C (°F) (ASTM D-97)-50 (-58)
NOACK Volatility, % weight loss (g/100g) (ASTM D-5800)5.8%
High Temperature/High Shear Viscosity
@ 150°C, 1.0 X 106 s.-1), cP (ASTM D-5481)
2.67
Total Base Number (ASTM D-2896)12.5

Related Videos

LSPI Super Knock Prevention

Sequence IIIG Engine Test + Motor Oil Comparison

Cold Flow Pour Test AMSOIL vs Conventional Motor Oil


 SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)

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Product Name: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Current Rating: 4.95out of 5 stars
Votes & Reviews: 528 vote(s) and 940 user reviews.


A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Henry: space

Always buy

Use n every vehicle I have for many years. Great products

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joseph: space

I use amsoil in every thing I own.

Use this in my daughters honda civic she loves the once a year oil changes

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gene: space

I will never use any other oil in my vehicles.

I use Amsoil Signature Series oil exclusively in my 2007 Expedition and my 2010 F150. Love the protection and improved performance in both vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jayson: space

I would recommend this

Great product....great protection.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Keith: space

2003 s-10

Use this oil in my 2003 S-10 2.2 and have 576,198 miles original motor

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Juan: space

You need to buy this oil product.

I love this oil. I will be using this oil on my wife's vehicle next oil change. The only thing I don't like is I need to add 1 to 2 quarts of oil before the next the oil change. Over all LOVE it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tony: space

Easier cold weather starts

I switched to Amsoil full synthetic after experiencing some sluggish cold weather starts using the competitors conventional oil. Now I have quicker cold weather starts and great warm weather protection. I have not only switched my trucks to Amsoil but also my boat and four wheelers.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rod: space

Excellent oil

Great product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rodger: space

Great oil and can trust the product.

Love the product. Vehicle runs cooler and sounds quieter.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bruce: space

Oil

Awesome product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big B: space

Saves money Top produce

Ams is the best oil I have used totally sold on the product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steven: space

isnt 5 stars enough to submit......guess not.

fill it out for me

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by D: space

The only oil out there.

Fantastic product. I use it in my Ridgeline. I opened the oil cap just to look around, the inside of the engine looked new even with over 100,000 miles. Never uses a drop.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bud: space

Change to Amsoil and noise went away

I own a Range rover sport 08 and started getting timing chain noise for a second or 2 after start up after switching to Amsoil the noise went away and my oil is much cleaner now.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mckenney: space

I going them again and again. I LOVE IT.

I used your oil more than 15 years, now my car run like BRAND NEW (My car Is Honda Accord 2008). Thank you.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Apex guy: space

Always use AMSOIL

Great product, my engines look great when I open them up! I run amsoil in two turbocharged cars and a streetbike. Track days, canyon roads, daily driving, it's great for it all!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Whitetundra18: space

Great oil

I have been using Amsoil products for over 20 years.
They have never let me down and I truly believe they save me money in the long run.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ace: space

Worth every penny

Been using for last 5 years. Stopped my old engine from knocking, and went from using oil to not using when I switched to Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

Oil and filter

Very good product, I use on all my oli changes.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Persistent: space

I only buy the best!

As long as Amsoil continues to win the comparison tests against the competition, I will continue to purchase this product. The pressure is on Amsoil!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Matt: space

2017 Taco slight MPG gain

2017 Taco TRD offroad 4x4.
I have just over 2500 miles on this oil now and have seen real MPG gains, granted very slight ( just over 1 MPG gain). My truck definitely runs better too.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by huffy: space

the good stuff!

I have a 2010 minivan that used 1/2 qt. per 1000 mil. after using
5w-20 signature series motor oil it now uses none "this is the good stuff!"

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pat: space

I ended up getting the transmission fluid.

I initially ordered the transmission fluid and accidentally got the engine oil. After returning the engine oil and receiving transmission fluid signature series, I must say how pleased I am. I noticed the few MPG improvement after changing the transmission fluid which had 43K on it. The engine shifts through the gears more smoothly.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by My bader: space

I'll keep buying amsoil for life.

I put this in my wife's
Audi and my Range Rover sport better engine protection and best oil you can buy.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by N/A: space

Signature review

Great oil, everything advertised is accurate!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by shorty: space

love this oil

my truck has 256000 mile run like new

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by NVTGhost: space

Best I've found!

Keep my car in Tip top shape.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Torque Man: space

Great Quality

I use the oil and filters in my muscle cars and truck. The click everyone complains about went away in the motors .Easy startup on the motors and no dry lifter sounds.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by stanger: space

Love the product!

Greatest point is that I only need to replace the oil once per year as I only put on approximately 25-30,000 kms per year.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cgc: space

So far...

Seems good....engine hasn't blown yet.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by HICSMMA: space

Best Oil's Ever

I use all Ams in all my toys and cars! You get what you pay for. This is the best.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Peace of Mind

When trying to go the full 8000km between oild changes typical synthetics do seem the break down around 6000km, You can tell but the return of valvetrain chatter even faintly after startup. I've noticed the Signature series holds up and I no longer hear that return as the miles / km's increase. Great Product!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Guilty-Crown-: space

Its the best, it works, its proven

The title says it all been buying for a long time for multiple different vehicles never fails

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

The best

Have used this oil for 20 years along with EA filters on my vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gallaticus: space

The Only Oil I Trust

I use Amsoil Signature Series Synthetic oil in my 2011 Toyota FJ Cruiser along with many other Amsoil Products and I will never look back. I change my oil and filter every 10,000 miles. I go 25,000 between oil changes on my daily driven 2006 Pontiac Grand Prix. My FJ Cruiser sees a lot of towing and off road use so I change it more often than recommended; although I'm more than certain it could handle the 25,000, no problem.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by HollisJR: space

I would buy this product again

My Honda CRV runs great on this oil. My mileage has increase and it just runs smoother. I highly recommend this oil. The best in the business.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by none: space

Am alongtime preferred customer, love your products.

Best in the business

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Zac: space

The best of the best

Look at any proper sheer test and this wins. The only oil I'll trust in my boosted built engines!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bryan: space

Wonderful product

Wonderful product I could tell as soon as I started my vehicle it sounded much quieter and I'm getting a little over a mile and a half better gas mileage.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by RJ: space

I will buy this oil again!!!

Had a slight tapping noise coming from my engine, after a oil change and new filter will AMSoil the sound was almost unheard, after a few hundred miles the engine is purring like a kitten : )

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Eddie: space

I would buy all their products.

Why because it is the best. Period! Amsoil is the best product company in the nation. Their staff are courteous knowledgeable and will research the items best for your vehicle upon your request so you would get the specific items.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Woodmansk: space

Definitely

Is there a better oil?? I think not

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big Red: space

Quality

I love this product only the best !

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by meg: space

i would buy this product again

better than the oem recommended

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill The Finn: space

Do that make other oil???

11 out of 10

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by O-tie: space

The best oil I have ever used

I have used 5w20 for many years in our f150 ford trucks and will continue for many years to come

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Capgoat6: space

Best Oil #1

This oil has always delivered the best protection for any engine. It keeps camshafts and other engine parts from ever having a metal to metal issue.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bob: space

I have been using Amsoil since 1996

Been using Amsoil since 1996

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Honda: space

Best oil on the market

I would not hesitate to buy several cases of this my car runs great since I started using this don't hesitate to buy

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

great product- the best oil

You can feel the difference compared with other synthetic oil
engine runs very smoothly
No need to add any oil for thousands of km

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vette71: space

Great products

Best oils ever. Used for years.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jimi: space

Motor oil magic!

This is the best synthetic motor oil I've ever used. My 2007 Toyota Camry V6 sounded and felt smoother than before. That's what 100% synthetic Amsoil does for your vehicle. I will be putting Amsoil on my 2010 Lexus ES 350 as well. Amsoil on my vehicles only.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lance: space

I have been buying this for years

Its such a good product, it has done me good all these years i will be buying more in the years to come.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve: space

Great oil!

I use this in my racecar and it's the only oil I'll use.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

Signature Series synthetic 0w20

I only use Amsoil full synthetic oil in my vehicles. This includes my motorcycle.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dman: space

Best oil I have used.

Holds up very well for changing it out every 10,000 miles. No burn off like other oils.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Harrison: space

I will buy your products again

Sorry haven't got enough run time yet but I changed everything from mobill1 and Harley to your synthetics

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brad: space

Top notch synthetic oils !

Best oil on the market hands down... tests prove it and the protection speaks for itself! I wish I had switched a long time ago because it would it saved even more life on my engine. 1999 Honda Accord with 250k miles on it and it runs like new! Thanks amsoil! Well worth the extra money because you save it from having to change it once a year!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by None: space

Best oil

I use to do a lot of driving . All my vehicles had 400,000 + miles on them including one Suburu with 505,000 only reason still not driving was not the engine but the rust eating the frame and body due to heavy salt used in winters .. .used the 25,000 oil change 10 -30 signature and 15,000 mi oil change filter . Changed oil and filter every 15,000 mi . Only added Extra half qt to qt at around 13,000 mi. Been a user since 1980's wouldn't use any other oil .

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joker: space

Oil

Best ever, been using for years and have plenty of people switching as well. Great product.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mopar16: space

0w-40

This oil is amazing I use it on my hemi 6.4 and everyone know about the hemi tick but with this oil I don't hear it at all so I love the oil I am sure the tick is still there but the noise is very low.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Flyer: space

Saved an engine!

I developed an oil leak which when discovered had depleted four of six quarts of amsoil which I believe prevented some serious engine damage. I have used this product in my F-150 Edoboost since 5000 miles and The truck now has 174,000 miles. Can't say enough about this great product!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DS: space

Very Impressive

I'm very impressed with this oil. I thought the gas mileage might go up a little but it went up by over 3 miles per gallon. I've checked it for 4 fillups since the oil change and it actually got a little better. I will be checking it for color change and oil life. It's great so far.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jc: space

Yes

Use in car and truck. Works great.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr. Preventative: space

Performs the Best

My truck runs so much better, and oil changes done once a year now.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LOU: space

Great product never be without it!

Keeps everything running cool and smoothly. My go to..never use anything else.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

I trust this product for all my vehicles

My vehicle engines have lasted a long time and I get better gas mileage to boost.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe P.: space

Great protection for rideshare drivers

I am a part time rideshare driver and have averaged over 22,000 miles a year. I go 10,000 miles between oil changes and have almost no burn off or evaporation. Have used Amsoil for 30+ years to protect my vehicles. Great stuff!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GW: space

Been using Signature Series Synthetic for many years.

I've been using the product for many years and trust Amsoil for all of my equipment - car, truck and all power equipment.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Popgun: space

I have been using Amsoil since the mid 80's...

... in every vehicle I have owned, new or used, and will continue using Amsoil as long as I have a car! Never had a problem even though I changed the oil annually. One service tech even asked why I was changing the oil since it was so clean! That's Amsoil, that's quality!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KC: space

Great Product!

As always, Amsoil produces great products for our "fleet' of vehicles ranging from SUVs, motorcycles, and trucks. Customer service is unparalleled.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

AMSOIL Signature oil 0w-20.

AMSOIL 0w-20 Signature fully Synthetic Motor Oil. Been using this oil in my vehicle since I purchased it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bob: space

Best oil for those that still change their own oil

I have used Amsoil in all my equipment for many years. I still enjoy changing my own oil and maintaining all routine maintenance myself. I appreciate being able to to go an entire year without another oil change and doing the work myself. I use this oil in my street rod, full size suv, 4 stroke outboard boat and gearbox, plus all of my outdoor lawn equipment. I also use Amsoil 2 stroke oil in all of my lawn equipment including a 1976 Homelite chain saw that has never been overhauled that still runs very strong.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr. Z: space

Fast Shipping

I received fast shipping on a great product! Thanks Amsoil!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Golden Eagle: space

Best Protection for Engines

I have used Amsoil Signature oil in my business car. Today with over 400,000 miles on it.... Still running like new! No other oil even comes close to the protection and value of Amsoil Signature!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Exceptional motor oil

My vehicles run smoother, with less vibration, and are quieter. The also run about 10 degrees cooler than they do with other oils. And, my gas mileage went up about 3 miles per gallon.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Seabee624: space

I've been using Amsoil since I bought my first truck in 1986

I change my oil once a year roughly 12,500 miles

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Squire: space

Best oil out there.

I Like the throttle response with Signature Series Amsoil !

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by crazy joe: space

Great product

We use this product in all my Jeep Cherokee Sports 1999, 2001, 2003 Grande Cherokee, and a 2004 Durango SLT 5.7 Hemi. They all run great and have a lot of miles on them. We also have a couple of old race cars and use it in them, if we get them out. We are hard on our cars and use them we are not granny drivers by any means the 2001 Cherokee only has 157,000 on it but we are going to start to use it daily as of tomorrow. the others are all used every day.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Krzysztof: space

Perfect oil

This oil last long time and the inside of the engine looks clean and really smooth. Great product and works magic. Thanks

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Whitey: space

The only oil I use.

I believe this to be the best motor oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Amsoil since 1983: space

Very pleased customer

Order was easy. Shipment was right. Product is great. Customer service was awsome.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

The product is great

Shipping was prompt and everything came in as promised

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Birdman: space

A customer for Life!

Great quality oil and filter - less oil changes and the perfect protection for the engines on my vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Harley: space

I will buy this product again

I aways use amsoil products after I used this oil in a car of mine that had a ticking valve when it was cold for carbon buildup The Tick went away never came back.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rosa: space

I am very happy with the product

It has been working excellent and we will always recommend this products to our friends and family.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave'sAuto: space

Smooth and Quiet

5.3 engine in my wifes `16 Suburban is smoother and quieter with the Amsoil 0w-20 SS. I was running good oil before, however this one seems even better.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rich926: space

Signature Oil 5W20

The absolute best oil I have ever used.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Grandpappy2002: space

Great oil, worth the money

Best oil I've ever used

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ron: space

Yes

In my truck

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Welderguy: space

Great Product!

My Engine has never ran so smooth! Engine temperature runs slightly cooler as well. I couldn't believe it till I seen it! Want a vehicle to last longer just treat the engine with this oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Greg: space

Great product for my hemi

I use amsoil for all my oil changes to have the best for my hemi/Ram

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pappy's Performance: space

Best oil on the market!

I researched all the oils and for several years Amsoil is the only oil I use in my personal vechicals and my customer's motorcycles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JB: space

Yes

Best in class product!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by G-Money: space

Third Order for this Great Engine Oil

Have used in 2004 Toyota Sequioa, 2004 Toyota Tundra and 2010 Lexus RX350. This oil does not sound nor feel like any other synthetic I have used in the past, engines just seem to feel more lubricated and ready to perform, even at 10,000 mile changeout intervals, though I know the oil is formulated to go much further than that. Best oil I have been able to find for sheer ratings/high PSI strength...best oil I have ever run period.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SQUIRE: space

I've been using the Signature series oil for years now

I LIKE THE WAY AMSOIL PRESERVES MY EQUIPMENT. IT ALSO MAKES THINGS RUN SMOOTH AND POWERFUL THE ROLLERS ON MY OVERHEAD GARAGE DOOR RUN SMOOTH AND EASY WITH THE AMSOIL !0-30 SIGNATURE SERIES OIL!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by C 150: space

The best money can buy

Ask any knowlegable mechanic, they all praise this product.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

Great product

This I used it my John Deere. I put it in the automatic transaxle. Much quieter now, and faster.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

Nice Motor Oil

Reviewing motor oil is a slippery topic. There is no way to determine if there is less wear and tear on the engine, but it looks delicious coming out of the container!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ricky: space

I swear by AMS oil

I use it in everything I own

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rane: space

130,000 miles and no issues

I can't say anything bad about this oil. Our 2016 Mazda 6 has had zero issues from the drivetrain. Zero issues with anything actually. I changed the engine oil and trans oil(manual) out as soon as I got the car home with less than 50 miles on it. The only thing I do that's not amsoil is add Liqimoly because the factory oil for our engine requires a high moly content. I change the oil every 15-20k and top off every 3-5k. The engine looks very clean inside the crankcase and under the valve cover. It still runs as smooth as the day we bought it and no leaks at 130K. I also use this oil in my brand new Tacoma TRD off road 4x4. I refused their complimentary free oil changes and stuck with what I know is a higher quality product.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DudleyDoRight: space

New Amsoil user.

I purchased Amsoil for my 3.6 LFX V6 Camaro. I went about 6k miles and changed the oil in the engine. I sent out a sample to an oil analasys lab and the results came back great. They recommended going 8k miles before changing the oil again because there was still plenty of "life" left. I will continue buying Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hollywood: space

Awesome oil

My turbo forester runs good with this oil

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by D.J.: space

Amsoil Review Great Product

Great Product , Fast service, good price

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Moose Man: space

Best oil ever!!!

I use this in all my vehicles. Bought a 2006 Honda Civic new for my son. He still uses it and it has 350,000 Kms and the engine still runs great. Always use AmsOil filters

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dan the man: space

Great product

I've bought this oil after watching YouTube videos of it beating out the other oils people buy. I usually do royal purple but not anymore. This oil cause less wear and tear and my car runs more smoothly. The best part is it's 100% synthetic. Royal Purple isn't. Great product. Definitely going to buy again.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by wayno bam bam: space

200k on '07 Prius

Just sold my 07 Prius with 200K. Used 1 quart in 19K as topping oil. Never had the head or covers off, changed plugs twice.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JAS: space

Best Oil

I have been using Amsoil for 25 years and never had engine issues. Great products!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by RonV: space

Great Stuff!!

I have been using Amsoil for over 30 years and think it is the greatest. I use it in all my cars, mower, and mix the marine oil with gas to run in my chain saw, weed,eater, and hedge trimmer. I recommend Amsoil to everyone who will listen.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Aaron: space

Only oil I trust

Doesn't burn off like other oils this stuff is amazing

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by rolo the mech: space

heve used enough to know it's value

use in all personal vehicles and equipment

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Uncle T: space

Best oil ever

I first started using Amsoil 10w40 in 2015 in VTX 1800. Then in 2017 started using oil in 2014 Patriot. Cooler, quieter and better mileage. Longer intervals between changes. Will not use any other oil in any machine I own as long as Amsoil makes it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

I keep buying this product

I keep buying this product because I now have 379,000 miles on my factory 1.4 turbo GM motor

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jake's toys: space

I buy this product very and over again

I use Amsoil in all my motors

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick P: space

Great stuff

I mean its a really gold Oil and as a memeber you get It for the same price as anything else on the market. How do you go wrong. I got 300k on my car and still going strong because of this stuff.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by kevin: space

the best of the best

i use only Amsoil signature series for the past 20 years. the best lubrication, protection and no gumming.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by carlistilllo: space

outstanding !!

i use only the best oils, and this one is one step ahead of everything ,car runs smooth, cooler and much efficient ,thanks!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Daddy Plummer: space

Long Time User (20 years)

I use this oil because of extended oil changes .... I change mine
every 10000 miles but rated at 15000 miles. Currently have over 240000 miles on engine and have used it since new so very happy with engine life

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by California Nordahl: space

37 Years of Use

I have been using AMSOIL in my vehicles for 37 years, for better fuel economy, better engine, transmission, and rear end performance, and much better protection for all vehicle components. I love this new oil upgrade for its protection, particularly against preignition. Pulling a trailer in hot summer weather with a turbo engine makes this kind of protection mandatory.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ocdpops: space

Only oil I use

Have two 5.7 hemis. One is higher compression with forged pistons( ie: burns a little oil). Oil consumption with Amsoil is 50% of other oils. valve train is noisy on 5.7 hemis. Using Amsoil reduces noise 75- 80%. MPG on both vehicles has increased.
Best oil I have ever used.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve: space

Good oil!

I've got a Shelby GT350. Voodoo engine is very special, and also very expensive to replace. While I can't 100 percent say amsoil has kept me out of trouble. I've beaten the tar out of the car at the track and barely consumed oil unlike many others. Will continue to use the product on this car!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by USAFVet: space

Amsoil products

I have used Amsoil products, exclusively, pretty much since I first heard about them back in 1977! Motor oil & filters, trans fluid, differential fluid, grease, MP, YOU NAME IT! I have NEVER had a lubricant-related failure, or wear-out, since! These are simply THE BEST LUBRICANTS MONEY CAN BYE...PERIOD!!!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jodster: space

442k miles and still going!

I have 442,000 miles on my Nissan truck, (original engine) using amsoil 10w30; I change the filter every 6,000 miles, and the oil around 12,000, (usually). In fact, I just had to replace the original (!) valve cover gaskets last fall, after 14 years! Amsoil does the job

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

Great oil

Using this product in my wife's grand caravan
It's always on the go So I love the long interval between changes and I know I can trust Amsoil products to get the max miles out of the vehicle

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KentuckyKen: space

Best oil for PHEVs

I have a 2018 Honda Clarity Plug In Hybrid Electric Vehicle' (PHEV). Most of my driving is local (< 50 miles) and uses the battery only so the gasoline engine can go months at a time without starting. I depend on the superior additives in Amsoil Signature Oil to hold up to the demands that only occasional engine runs with long periods between running places on the oil. With my driving schedule, Honda allows me to go 1 year between oil changes and I wouldn't trust that interval to anything but Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Terryg: space

Best oil on the market!

This oil is absolutely the best product, I've been using Amsoil for more than 30 years and this is without a doubt there best product ever for most cars and trucks

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Collector: space

Great Product

Best oil on tue market. I run it in all of my vehicles and I don't trade much so they have to last. From motorcycles to cars. Big trucks to small suvs, I trust only AMSOIL.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CDC: space

Great product

Use to keep from changing oil so often

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Muxdragon: space

Awesome Oil

I drive a 2011 Tacoma. I change my oil yearly. I've only used this oil for all the oil changes. After a year, the oil on the dipstick is still gold after 15,000 miles. I do notice that at the year mark it need to be changed. The reason is because when I pour in the new oil the motor runs smoother. Great oil! It does what it says it does.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by jeffro: space

Excellent product(s)

Have a 2006 Rav4 with V6 engine. Been using Amsoil's best oil (Signature 5W-30)and EA filters since the car was almost new. Vehicle now has 233,000 miles on it and does not smoke, burn oil or have any leaks. Still runs as new. Do my own oil/filter changes and do so at approximately every 15,000 miles and/or at least twice a year. The ambient temperatures can easily rise above 90 degrees and the AC is used daily. Do a lot of rural/highway driving and for half the life so far, stop and go city driving.
My other car is a 2000 Miata with almost 200,000 miles. Same scenario as above but I don't put as many miles on the car per year. I change the oil (Amsoil Signature 10W-30)and EA filter yearly. Changing the oil on this car is a pain because of how one must contort to get to the filter while laying on my back under the car. So changing it once a year is a big plus. This engine does leak a bit out of the rear seal before the manual transmission. Can make 2500 mile cross-country trips at highway speed and use maybe a little under 1/2 quart (from the full mark on the dipstick).
As an old school "shade-tree" mechanic I highly recommend these oils and the EA(Amsoil) filters. The web-site is very helpful too, as are the staff with any verifying questions. I believe I save money both in the short and long run.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DC: space

great oil

switched to amsoil years ago on a truck with 250000 mi.
lifter noise went away still runs today

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rubicon owner: space

I have used this for years in several vehicles.

I have been using Signature Series oil in my trucks for years. When it is a new vehicle I switch at its first scheduled oil change. On a used vehicle, soon after purchase. I had a 2001 Silverado 5.3L purchased used with 22000 miles. Switched to Signature Series and drove it to approx. 98000 miles. Gave it to my son who went to around 150,000. Sold it they put about another 10000 on it and sold it again. Last I knew it was rusty but still running strong. As far as I know It has had no major engine work.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rich: space

Amsoil signature series

Most complete motor oil ever,will never put anything else in my 2017 Chevy Silverado.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Huck: space

I use the Signature Series 5W-30 oil at every change.

I use the Signature 5W-30 motor oil in my 2014 Hyundai Elantra Sport. I was surprised the first time I changed the Amsoil Signature motor oil as to how dark the oil was when I drained it. Then it hit me that the synthetic oil was cleaning the engine from where previously the engine had only seen a multi-weight oil. One other thing I noticed is the engine temp. shows the motor is running cooler than it did before I started using AMSOIL.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chardog: space

Only product I will use

My family has 4 vehicles and they all have Amsoil in them. I highly recommend using Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Martin: space

Excellent

I have been running this oil in all my vehicles for several years, and have been very satisfied with the performance of the oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Malcolm: space

Best oil to date.

Loving this oil

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by don: space

great oil

i use amsoil in my truck, engine,rear end, trans, and my motocycles engine, trans clutch and i totally rely on it. my truck had a howl in the rear end when i would back off on speed after changing the rear end oil to amsoul it stoplped i love amsoil and highly recommend it to all my friends.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe and a Subaru: space

Loven Amsoil

So fare so good, I put amsoil in my 2016 Subaru impreza and she runs like a champ just like my 06 Chevy Silverado.

I have been running amsoil in my 06 Chevy Silverado for a few years now and I have seen the benefits both in overall preformance and reliablilty, it has transformed from a ticking tapping noisy engine to a quiet and smooth running one, you can't even tell it's running most days, the truck only has 100,806 miles on it but I wouldn't put any other oil in it, as soon as I try it start the lifter tapping thing again it is kind of weird in my opinion so I think its safe to say that this truck likes its amsoil.
But i thought to my self why not put it in mysubie and get the same benefits as the truck. Both vehicles have amsoil in ever oil driven/gear driven component and I am a believe in amsoil. I am think about trying it I'm my lawn mower this summer and in my snow blower this coming winter. Why not lol

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big Dawg Corvette: space

Great oil for my race car

Run this oil in my 2002 corvette road race car. Dry sump engine, need the best protection. Great oil and has not let me down! Thanks Amsoil!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Austin: space

Would by again

This oil exceededs my expectations by far. Before using this oil I would always have a faint ticking noise in my valve train. After using this oil it is so quiet i couldnt belive it. The oil life itslefs last an incredibly amount of time as well. One of my favorite things about amsoil ut leaves behind a small film of oil after u shut down your engine. So when u start back up it still has a small flim to protect your engine intell the oil is pumped up. I use amsoil in ever one of my vehicles

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ken_FJCruiser: space

Never Compromise

I trust this oil and the other Amsoil products because they work. I know that the maximum vehicle life and best operating effectiveness come from due diligence in maintaining it properly. There is great comfort in knowing I didn't compromise with the products I used. Keep rolling!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by IndyCarDriver: space

Love This Product

Have been using this product for about 9 years on both new and used vehicles. With extended mileage, I only change 1X per year. Cars have performed flawlessly.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by jazool: space

Ultimate Protection

Our Subaru hemorrhaged out all of it's oil on a trip (16 miles) to our Mechanic. He later called us and asked what type of oil we used. When I told him Amsoil Signature Series, he said "keep using it; you were totally out of oil !!". Using it for 20 years now. Never had an oil related failure.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry: space

Only Amsoil For Me

I use Amsoil in all of my vehicles (4) and I believe that's why they perform and last a long time!!!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Phil: space

I will continue to buy this product

I have used this product in my 2009 Civic since it was new. Now with 195000 miles It has never been in the shop except for tires and brakes and 100000 mile spark plug change. It still runs like it did when it was new.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ramblin Roy: space

Great product

The SS 0W-20 works awesome! I just wish it were a little cheaper in price, even with the PC, it is still a little bit high in my opinion. However, it is a great 100% synthetic oil. My 2015 Silverado with the 5.3 V8 runs a lot smoother and has more power with this SS oil in my opinion.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fender Bender: space

It doesn't get any better!

I've been an Amsoil PC for around 10 years now. I love Amsoil products and so do all my machines! There is no better value for your money. I have never had any engine problems in anything I have poured this liquid gold into. My wife's 2013 Toyota Rav4 loves it!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BW: space

I use this product in all of my highway & mountain vehicles

I use Amsoil in all of my vehicles as recommended. We just handed down a 2003 Toyota Matrix with over 200,000 miles on it to our Granddaughter. This car was still of high quality even though it was used daily on dusty and dirty farm roads; as well as highway. I hope she gets another 100,000 miles or more.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gene: space

5- 20

Have used this oil on two of my trucks one has over250000 miles and still going strong. Love this oil,use it in my motorcycle too.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gene: space

I would buy this product again

I use it in my car and when I change oil it still has a great consistency

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Floyd: space

The Best

This oil I use in our 16 Escape, to better protect it's turbo. Living in Wisconsin it can be well below zero in the winter, and what a difference Amsoil synthetic oil makes.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Herby-Dean: space

Only the best

Nothing but good to say about amsoil products.... they are the best!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bigred911s1: space

Hi quality oil

I'm finding this oil looks cleaner and it's viscosity appears to hold up longer than Mobil 1 after the same 10k miles. I will continue to use this oil in my 2016 Mustang GT. 52k miles already and still running strong.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by josh: space

Great oil

I run this oil in my 79 Chevy k10 and change it once a year with a fresh oil filter mid year my speedometer doesn't work so I don't have to worry about changing the oil every 3 months I am really pleased with this product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ray: space

Great Products

I have been using these products for more almost 30 years. I trust them.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by sparky: space

Great product, loyal user

I have been using Amsoil for at least ten (10) years, it's a life, and engine saver!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob C: space

Been using signature series for almost 2 decades

I've used the Signature Series oil in everything from a well-modified 99 Neon that routinely saw 8k rpm to my wife's turbocharged Ford Transit that takes our kids everywhere, and it's never let us down. I would conservatively put the amount of mileage we have on this oil over the last 20 years at 350k miles, and that's a lot of saved money in oil changes by using Amsoil's extended change intervals. I've never had a problem with any engine having oil loss issues, either, no matter how hard I ran the motor.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Todd: space

My absolute favorite oil!

Works great in my wife's Buick Verano. I also use the 5-30 and 10-30 signature series in our GM pickups. My 2003 Silverado has 293,400 miles and doesn't burn a drop of oil! Bought it with 90k on it and has had all Amsoil fluids in it ever since.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bradley: space

Great product for any Chevy LS

This oil works great with E85... Best I have found from the major brands.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Amsoil is some Good Stuff

I used to be very sceptical of synthetic oil so I decided to try it in my company truck(not my company). The truck ran up 200,000 miles and still running strong with minimal oil consumpsion. My wife has a growing cleaning business and I do the maintenance on the cars. Using Amsoil I went from 5,000 mile changes to 15,000 miles using the Signature Series 5W-30.
She now has fifteen cars in her fleet, that cuts my oil changes from forty five to fifteen, that is a tremendous labor savings for me and it actually saves money. I use Amsoil in all my vehicles now and it keeps them running strong. I recommend to anyone that asks that they need to try it out. Great Product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

This is the only product I will use in any of my vehicles

When I buy any vehicle, I change to Amsoil Signature Series the first oil change and use nothing else thereafter. As a volunteer fireman, my vehicles are subject to being run at high speed while cold. Signature Series provides outstanding protection. Some have over 200,000 miles on them and none use oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

I want the best

Modern GDI engines require excellent oil to stay clean and handle everyday extremes. If you are using your cars maintenance indicator you might be exceeding other oils capabilities I know signature series gives me the best I can get

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Goose: space

The Best Protection Money Can Buy

I run this Signature Series 5w-30 in nearly all my vehicles. Typically I see a 10% increase in gas mileage ( over an engine ran on conventional mineral oils ) on the interstate no matter what size engine. In one recent event, I blew a head gasket on a Quad 4 engine yet drove the car for about 10 miles. Observing the chocolate milk colored oil, the engine was not damaged as it was protected by Amsoil Signature Series lubricant.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JR: space

The best cost more

Yes Amsoil oils are more costly that many
other oils. I keep my vehicles for decades
and want the best oil protection I can get.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ian: space

Only the Best for my Engines

I use amsoil don all my vehicles

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

Best on the market

I have used only Amsoil in my 2005 Toyota pickup.
I now have 205000 miles. I have never had a problem
and still us no oil and have no oil leaks.
Change every 25000 miles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dink: space

Amsoil

Hi. I am totally sold on Amsoil ! Superb protection. Awesome lubrication. Even in a little engine overheating, it still protects ! I reccomend it to the world ! Nothing beats it ! Nothing !

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pat: space

I will continue to use Amsoil

I can't think of anything negative to say

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chieftom: space

Yes

In my personal auto's

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pistol: space

I will buy this product again and again

Made the engine run so quiet

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dayjoe: space

I haven't found a better oil than amsoil signature series

I don't remember how I got started with amsoil oil. I use it in all my motors. The 5w 30 is the one I use in my 2003 Chevy pickup. It was making a loud ticking noise before I started using amsoil in it. As soon as I started using it I could tell a noticeable difference and smoothness and the ticking went away so I'm very happy.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kevin: space

I would by again

Best oil on the market.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Virped: space

It's the best choice for your engine!

It goes in my 3.6VVT and my 5.4 2V and does wonders for engine noise, oil change intervals, and most of all performance! It doesn't matter if it's a modern engine or not so modern engine, it Works!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Trouty: space

Best synthetic available

You can put any oil in a new engine and call it good. I run my cars 200k+ that's when oil matters. Amsoil cools,cleans, seals and lubricates better than anything I have used and I have tried them all.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brandon: space

Best oil, no competition

I drive for work 1,000 miles plus a week, I use Amsoil in my car along with my wife's... I have right at 300,000 on a 2012 Kia Soul and the motor is just as good and clean as the day I purchased. I save money as well... using any other other brand is crazy

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Guardian: space

Very good product!!!

It's the best hands down! Some people think it's all the same ! There wrong! 25,000 miles you can not bet it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry: space

The best oil on the market

I have used AmsOil exclusively for over 20 years. It's the best there is. My truck loves it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jerry: space

I plan to continue using

I use in my 1999 Corvette because I like to use the best, and also in my 2016 Dodge pickup.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Paul: space

I would buy again

I use this every 5k miles. The car runs smoother and quiter than my previous oil changes. It doesn't lose it's slickness. I'm overall satisfied with this oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by cheyfinn: space

yes, i have been using AMSOIL sence 1985

cars' trucks' & motorcycle, lawn mower, snow blower

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brad: space

Best oil i have ever used

This is the best oil I have ever used in my Ram 1500.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Worth every penny

First thing I noticed right away was how it make an already smooth engine even smoother and quieter. I've always used Mobil 1 advanced 15k oil and have heard nothing but great things about Amsoil. A co worker of mine had a teacher in tech school who used to rebuild his engine every year after racing season. He switched to Amsoil and hasn't had to rebuild it in 5 years. As soon as I heard that I was sold. If you want the best Amsoil is it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Road runner: space

No problems

I have been using this product since vehicle was new and have had no issues with my vehicle. Engine runs great and strong and I change about every 15K vice 25K as put a lot of miles on this vehicle.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by B: space

Always use

I love this brand of oil and been using it for the past yr on mustang.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The Capt: space

Peace of mind

I have used this oil on my cars, trucks, and sedans. Never balk at the cost, knowing darn well I'm getting what I pay for. Less oil changes, frees up time, less waste, and superior protection.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sam: space

Great oil

Last truck had 175K and never used a drop of oil. Change oil, run 15-20K and still full.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Watercooled: space

Smooth Operation

After breaking in our two new 2017 Mustang GTs, performed oil/filter changes on both. The two things I noticed was quieter engine operations and a small increase in oil pressure. The engines also ran smoother than before. Overall, I'm very satisfied with the notable differences I've experienced.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

The Good Stuff

Best Around enough said

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cole: space

The oil to use for vehicles you plan to keep

I have been using this oil in my 02 siverado and 02 suburban since 04. 297k on the truck and 317k on the sub. Oil is changed once per year, have had 32k in one year on the truck. Engines still run great and have no oil consumption, increased fuel mileage seen on both. I don't use anything else

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by dodgehunter: space

I really like it

I used this on my 2002 Tahoe the oil at 3000 miles looks like new yet. In the very cold weather here in ND it start right up. Vary pleased with oil. I will be doing all the fluids in my Tahoe with Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by D.K.: space

Only

Unless I can't afford it Amsoil will be the only oil I use. It is very good and while some people say it is more expensive, they are usually comparing it to cheap oil, it is worth every penny.
Considering the extended service length it is great.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dudewayne: space

Great oil, maybe the best you can buy

Been using this oil for several years now and get great results from it

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Snarkman: space

Beyond expectations!

Been using Amsoil for decades, in everything I drive. Have over 2 million miles in a Semi with Amsoil. Increased life of every component . I pushed it to the limit , never failed. And I push hard ....

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Carlitos: space

I would recommend using Amsoil

I like taking care of my cars that's why I use Amsiol

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JW: space

Best Bang for your Buck

I've been using Amsoil since 1998. I've had to replace the intake manifold gasket on past pickups, when the mechanic ask me if I cleaned the inside of the engine before bringing it in I said no, I use Amsoil full synthetic. He said well the inside of the engine had absolutely no carbon buildup. He said that was the cleanest engine he had ever seen that had 110,000 miles on it. From that day forward he too was a Amsoil customer.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by D Grim: space

So far so good

I drive a 2009 HHR with a 2.0 NA 4 cylinder engine approx. 100 miles a day and have 160,000 plus for mileage. Economy comes in many forms in this case fuel, oil and tires are my biggest expenses and ones that I can somewhat control. We had a cold spell not to long ago of real temps -25 and colder. The HHR still has the original battery and with the Signature Series 5w/30 it cranked right up with out a problem. Next step is to submit an oil sample same time as the factory algorithm says to change oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by steve: space

When you are the best the hech with the rest.

The wear scar test results verify my faith in your products. combined with the best chemical package to keep my three Diesels & 2 Gasoline motors clean. I like the 25,000 mile products, saves time. thanks for the extra engineering it took for development of these products.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rayford: space

Best oil on the Planet !

Actually get better fuel mileage , performance and reliability from using Amsoil . Why not use the best in these expensive vehicular .

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Upon2wheelsBill: space

Non deceptive Hi quality products

Your products are easier to compare because the specific facts are up front and easy to understand and are a great value.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Daltonjc: space

Great Oil

I use Amsoil in all my vehicles and equipment. I would recommend it to anyone.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by RabbitJackson: space

2009 Ford F150

The truck runs great and uses no oil at 130,000 miles

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Macs: space

A++ lubricant

This oil does what they claim it can do. I normally try to change my oil at around 12000 miles, but sometimes if I'm too busy it goes much longer. At the last oil change, I changed it at 25000 miles. No problems whatsoever. The dipstick oil level was still normal after a year of use. The Signature series oils are worth the extra money. I also use the diesel oil in my 06 Duramax truck. It's about to hit 400,000 miles and not a single problem.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tyrone: space

Amazing

Now this may sound negative but it's a positive. I bought the 10W 30 for my 1998 Jeep TJ 2.5 with 250,000 miles on it. Amzoil really cleaned and lubricated my engine really well. I dont recommend going to a synthetic motor oil if you have high milage and you did not you synthetic oil prior to because this oil cleaned my engine up but I developed a leak. But in retrospect I'm am going to use only Amzoil in it when I rebuild the engine. Went back to Dyno oil for the time being.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by dave: space

I don't anything else

have used Amsoil for the last 15 yrs. never any complaint with it the only way I get my lawn tractor with the snowblower started in the winter starts every time

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bobby: space

Love this oil!

Using this oil in 1950 Chevy truck with 2004 LR4 4.8L engine. Starts and protects from below freezing to 90+ in summer with constant oil pressure. Engine looks new inside.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

This is the only product I use in My vehicles.

I have changed both vehicles over to Amsoil in the engines and the differentials,transfer case and transmission on My pickup and will soon put in Amsoil coolant.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lar: space

Nothing but the best

As far as I am concerned Amsoil is simply the best for all of their products

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Amsoil fluids

I have used Amsoil 0w 30 in my 1998 Corvette and now I have 213000 miles on it and there are no unusual engine noises. I change my oil once a year. I have three boats 2 Corvettes,1SUV and a motorcycle all use Amsoil products. I virtually have had no powertrain problems. I use nothing but Amsoil and will continue to do so. I appreciate Amsoil technical papers as they show the science behind these outstanding fluids and are useful to convince others of the merits of Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Zed: space

Best engine oil, period.

Excellent product and protection. After doing much research will only buy this product to protect my classic sports car, and daily driver.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Amazing oil

Long life. Engine oil stays clean.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The Doc: space

Never a regret

I have been using Amsoil in my vehicles since 1986. After having to change a timing chain in an earlier vehicle...it was clear ( internally ) how good Amsoil actually is. The chaincase was as clean as if it was just made. That vehicle continued on to + 260,000km with no oil leaks or other loss.
Amsoil....I am a fan for life!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by flight: space

Best oil

I love all AMSOIL products

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rusty: space

Best oil you me or anyone else can buy.

I use Amsoil in all my vehicles, and I have many. From my Shelby GT 500 to my ATV and lawn mower. Best oil you can buy!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Reno P: space

The Best Oil

Been using Amsoil Signature Series 5w20 for over 18 years and have been extremely happy with it. I go 15000 miles between changes and never use more than a half quart between changes. It's the BEST.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by don't use one: space

Always satisfied with Amsoil

I use this in both of my vehicles; one specs 5W-20, the other 0W-20. It gets down to -15 degrees where I live in upstate NY and I depend on Amsoil to provide effective lubrication at temperatures where other oils struggle to perform. I generally put over 250,000 miles on each vehicle, and have never had one consume any Amsoil. Totally satisfied.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by axecut: space

Best oil period

I have to use the best oil. The cost of not using Amsoil will put me out of business

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by jb: space

nothing but this

I've used this oil in my vehicles for at least 10 years and they have performed as promised.....also haven't had any leaks from the engine ....wouldn't change!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Trump2020: space

Best oil on the market

This is by far, the best product on the market.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by rblilly: space

Best Oil Ever

I do 10k mile oil changes per Toyota, but this oil comes out still clean, not even black. I have no doubt I could use it up to 25k miles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

100% trust in all Amsoil products

Every oil change gets Amsoil

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jake: space

Engine started when -34F

My 16.5 year old truck still started in the cold Iowa winter when plenty of other vehicles even newer ones wouldn't. Have to give credit to good synthetic oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jaymoe67: space

Best money can buy.

Extended drain intervals, combined with my bypass filter, I'd drive this thing to the moon if I could figure out how to get it off the ground!!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Healey: space

Good fuel mileage

Good cold weather starts

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Whzone: space

Feel the power

made a grate difference engine is quiet with a 10% better on gas can't wait for my next oil change

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Thomas: space

Yes I would buy this product again and again

I've used this product on my 2014 Jeep Wrangler, I love this oil been using it awhile with no issues what ever

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Travis: space

10/10

07 FJ cruiser with 150k miles, as soon as I dropped this stuff in, lifter rattle was gone

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rosopower: space

Good for me

Hard To start very cold day

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cliff: space

Oil lubrication

I use Amsoil oil, and fluids in all of my seven vehicles, from bumper to bumper, witch has cut way down on repair, down time and oil consumption..

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by navret02: space

My Oil

This oil really makes me feel safe knowing the protection it gives!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by L. Barr: space

100% synthetic all the way

Best form of lubrication for any automobile in my opinion.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by L. Barr: space

Only prd

Only product for my cars.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

The only oil I trust

I use this in my Ram Rebel 1500 and it keeps the truck running smooth.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dan: space

I have been using this product for over 15 years

I live a very cold climate. Temps sometimes get down to -30F with wind chils to -50 or more. My vehicles sit out side all year.
I've never had a problem starting them, no mater the temp.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pink MG: space

Nothing but the Best for my Rides

I use AMSOIL signature series in my new Ford F-150 because the protection is great, the change intervals can be extended if necessary without lubrication properties breaking down. It conveniently shows up at my door via free shipping as a preferred customer.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by drm: space

10+ Year Customer -

This is my first round of 0W-20 Signature Series for a 2015 Suburban as well as a 2016 Toyota. Paired with AMSOIL EA Filters, I trust the recommendations of the vendor. I've never had an issue whatsoever. Oil consumption using Signature Series 5W-30 on previous vehicles with over of 180K and 207K miles was ZERO. I loved the cold weather start and 1x/year oil changes (avg 17K miles/year).

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PDFAMILYMAN: space

I won't buy anything else

5W20 is for my 2010 Ford Ranger. I run it hard, and the oil does it's job flawlessly. I use AMSOIL on all 5 of my vehicles. I won't buy anything else but AMSOIL.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Johnny's machines: space

Keeps my '98 Subaru and my customers' generators happy

I use Signature Series 5W-30 in my '98 Subaru (138,000 miles), and it couldn't be happier.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

Dedicated User

Amsoil got my business in 1983 when we were running two stroke outboard engines at very high RPM's in a racing format. After one season putting the engine through these conditions we would rebuild the engine. After the year was up the cylinders still had the hone polishing marks visible to the eye on the cylinders. Every gas or diesel engine I have owned since that day runs on Amsoil and only Amsoil. Why would I try anything else. The extended run time only makes it a better product as far as price. You can get this quality at or near the same price as just oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Works great in every thing

I have been using this amsoil in my Jeep JK 2017 since new, and it seems to be preforming well I also have it in front and rear differential.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by C' DAWG: space

Won't use anything but AMSOIL!

Have been using AMSOIL products 4 more than 20yrs. No bone 2 pick. No vehicle I've owned has used oil, excellent performance. Engines, transmissions, manual & automatics, & live drive axles! No problems ever! I will only use AMSIOL! THANX ABUNCH AMSIOL!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

Great product

I have been using high mileage synthetic oil for the last 5 years. When i got my emission chech the technician was confused, he said , ' the engine is running so clean, its like purifying the air' !

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KNC: space

I would buy this product again.

I have used this product for 16 years with excellent results. (All around good oil analysis, much lower cost, time saved.) I recommend this oil whenever possible.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Willy: space

20 year user.

Great as usual.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Yogi: space

Sig series 5w30

I have used this in a few autos as well as a 4 cycle toro, superb engine protection, second to none cold weather starting as well as lower operating temps in the hottest days of summer. Very highly recommended! !

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr. B: space

Liquid Gold

This Amsoil Signature Series engine oil is the best I've used.
I call it my liquid Gold. I would highly recommend it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Old guy: space

Best oil available

My Ranger has 210,300 miles. All original engine except fuel pump. Runs great. Amsoil in engine and tranny since purchase.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dylan T: space

Great oil, great service!

I like to keep my car in tip top shape, so I use amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by bogator 2: space

Best product I have found..

A friend of mine has been using this oil for many years and finally talked me into trying it, I have always used synthetic oil but decided to give this one a try, love it..

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vette: space

Signature oil use in 06 vette and 10 GMC 1500

Used for years #1

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

The best oil on the market

Amsoil Signature oil is the very best oil on the market and I use it in all of my vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Al: space

Life time user

This is another product I've been using since it's introduction paired with the EA filters. They make a great combination for protection

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

Excellent oil

I have been running this oil in my Silverado and my Chevy SS and this is by far the best oil you can use. Now I still change my oil based upon the intervals the car tells me but the protection you get can't be beat. My oil analysis have come back excellent!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gregthecarman: space

Great Oil

Use this in my 2016 Chevy SS, and in my wife's Ecoboost Flex. It minimizes oil use and improves mileage. Was using Mobil 1, switched to Amsoil (after free dealer oil changes ran out) and oil stays clean longer and mileage improved about .5 mpg in both cars. This is year over year, not tank to tank... Both cars rarely see the highway nowadays (both wife and I switched to jobs close to home so side streets to and from work it is)...mpg's going from 14 to 14.5 doesn't sound like much, but it is something!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fisherman: space

The best

I bought a n oil change for a friendgreat product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by 2018 Accord: space

9k miles so far so good..

Best oil I have used so far. 9k miles on it and oil is still good.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ANGLICO: space

Outstanding product.

I used the Signature Series oil on my 1992 Land Curiser with a 3FE inline 6 cylinder motor with 230,000 miles; I replaced the oil filter as well.

The new Amsoil oil change noticeably fixed several issues I was having with this old motor. The oil pressure stabilized, compression, temperature, noise, and gas mileage all improved as well. No more leaking head gasket seals, burning oil, and more throttle response.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MR.HAPPY: space

Well worth the money!

Feel better engine performance,also the mix of higher octane of gas helps also,love that it limits me to one oil change per year depending on more driving or less.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Berky: space

No one makes better

Amsoil is the only oil company that I've ever been able to provide 3rd party testing documentation against other synthetic oils back when no other synthetic manufacturer would provide that sort of information. I switched from Royal Purple to Amsoil when my father recommended them. I asked them to provide documentation that they were the superior product and I would switch. They did and I've been a loyal customer for over a decade now.

I drive all of my vehicles I've owned hard. I feel they are made to be driven, so I drive them hard and push them simply for the joy of driving. If I am going to purchase a sports car, I plan on driving it like one. I use Amsoil to make certain the internal parts of that engine have the best protection I can give them all year around. I have never had an internal part failure on any vehicle I have ever had due to lubrication failure. I trust no other oil to be in any vehicle I own, and I push my friends and family to do the same.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Miles: space

The only thing I use.

Bought to use in a 2018 Honda Accord 2.0 turbo as the stock oil was burning up and leaving black soot all over the back of my car. The amsoil doesn't do that and now I feel confident about my car not blowing up from lack of lubrication and costing me a ton on money to fix. Just wish they sold it in a 5 quart jug cause having to buy a gallon and then a separate jug is a pain and the individual quarts aren't cheap.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Love this stuff

This Oil is Great. Always Recommend this to others.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bkrguy: space

I'm convinced!!

Finally tried Amsoil. I put it in my 2013 Cadillac and noticed an instant difference. Smoother idle. Smoother acceleration. Increase in fuel mileage. I will be using Amsoil from now on in all vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Best oil ever used.

I changed to Amsoil in 2014.I had a new Chevy truck and by changing to Amsoil 0-20 increased MPG by 1.5 per gallon. It worked great for 75,000 miles. Traded trucks for a 2017 Chevy and changed with Amsoil the first oil change. Just great oil. I also use Amsoil 20-50 in my Harley Davidson which runs cooler than any other oil that I have tried. I run the 20-50 Amsoil dirt bike oil in my 2015 YZ250FX works great. I recommend Amsoil to all my friends. Amsoil has never let me down.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

I would buy this product again

I use Amsoil in all my vehicles, 2015 Ford Explorer, 2005 F250 super duty, 2016 GL1800 Goldwing, & 2008 Ford Taurus, It's a super high grrade of oil and I had a 1996 Chevrolet truck 5.7L that i had over 250,000 miles and had pulled the valve covers and it looked as clean as if I had just rebuilt the engine !

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jackal: space

Best protection and long drain oil

Been using and oil puducts for years it's by far the best lubricant in the industry!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dan: space

Absolute Best

You cannot find a better oil in America than Amsoil. Read the test data and all the reviews. I was always taught to do research on products to find the best. Thats what I did. AMSOIL is the best!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GarryW: space

Amsoil

I have been using AMSOIL Oil for a number of years. I have 340,600 miles on a 2003 SVT Focus and have been very pleased with how AMSOIL OIL has protected the engine.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

Signature Series 5w-30

I have been using amsoil 5w-30 on my 2004 range rover hse and 2008 range rover hse for almost 15 yrs now and these oil brings back old cars back to life instantly from fuel efficiency to engine fluidity. Engine feels like new. I change oil from 6-8 months or 7500 miles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave in CO: space

Great oil

Love the performance of my motorcycles w this oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

Great product

Used signature 10-30 synthetic in my 2002 sequoia and drove almost 15,000 miles before changing the oil and filter. I sent a sample of the waste oil to a lab for analysis. The oil was good, still usable, with no traces of problems.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gerry: space

Best oil for gasoline engine.

I've been using Amsoil for almost 20 years, my 1999 GMC Yukon Denali, 219,000 miles, and 2008 Mitsubishi Outlander SE, 221,000 miles using 0w30 Signature Series and both still going strong, and now a 2016 GMC Canyon Diesel truck using the 5w30 European Formula, Highly Reliable Product in my book.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rustdoc: space

Oil Change

I use Amsoil in all of my vehicles. I have found it saves fuel and makes my engines run much smoother and cooler. I have proved the use to many friends with my Harley's showing them how ell they perform also.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tony D: space

This is the only oil I would use again

Motor run smoother get better gas mileage and change the oil less Oil still looks great when it comes out

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

Preaching to the choir

Have been using Amsoil everywhere possible, don't have to ask twice.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

Facts are facts. It is simply superior oil.

The third party tests only depict the facts. But I have many years and many vehicles that only used Amsoil. I appreciate that Amsoil offers OEM and other options. That's awesome. But I've always gone with the Signature Series oils. I keep things as simple as I can. I don't want anything but the best, and I don't want to have to second guess engine protection. A full year (repeated years, one is a 13 yo Focus I bought new), that has never been more than a half a quart below full at its annual oil change. ??? Why scrimp on protection when I'm saving money and producing much less recycle oil, AND the car runs awesome after all these years?

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mobilemotormedic: space

The best oil and filter out there!

I switched from conventional oils and filters back in 2012 and its been the best decision I've made concerning lubricants.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr. Bob: space

Top Tier Oil

I have used this since the first oil change in my car that I bought new in 2016. Newer vehicles call for a 0W-20 oil. With that thinner weight oil I am concerned about wear protection. Looking at independent test lab results of Amsoil 0W-20 oil I see that it does better than other oils and passes the tests with ease. My car also has variable valve timing which can be vulnerable to sludge buildup. A clean synthetic oil is a must and the Amsoil additive package fights sludge better than others. We get easier cold weather starts and slightly better mpg too. Spendy but good.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Stan: space

Excellent

I believe that Amsoil is the best motor oil that you can buy.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BH: space

The only oil I use

Keeps my Subaru DIT engine running smooth. I wouldn't put anything else into a turbo charged engine.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Coyote: space

Perfect

Great product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by shotz: space

Good oil

Oil seems to work very well . This is the second oil change with it - so we'll see how it goes from here

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Eric: space

Amsoil

I have used Amsoil forever. I dont trust any other oil in my vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Charlie: space

I will definitely buy this product again!

I really have enjoyed the switch to synthetic, I was super pumped to open up my kit in the mail.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rond: space

Products

Bar none, Amziol products are the absolute best you can buy! For everything you own, farm, lawn and garden , cars, trucks

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Subaru man: space

Best oil ever

Just turned 120,000 miles and the engine is very quiet and runs like new.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wrangss: space

Sig-series 5w20

Excellent engine protection with the long term performance provided by Amsoil. Consistently better mileage than any other lubrication product. Would recommend to anyone wanting the absolute best in engine protection and lubrication.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Only oil I'll ever use

Use this in my 2011 Camry with 250k miles since new changing it every 25k miles

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DM: space

396K km and running well

My go to oil for 05 and 10 Impala. Used Amsoil since buying the cars with approx 60,000 km on each. 40,000 km oil changes within 12 months with a filter change at around the 20K km mark. I had 345K on the 10 Impala when the transmission gave out - motor was strong. The 05 is still running well with over 395K kms. Has to have something to do with good quality oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by J. Rasmussen: space

Best!

I only use Amsoil. Wouldn't waste my time, money or vehicles on anything else.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Josh: space

Best Protection

I have used this for a few years now and has provided the best protection out of all the oils out there for me.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Green Dragon: space

satisfied user

My '14 Outback V6 requires 5W-30 I have used Amsoil every 5,000 mile or 6 months to meet warranty requirements since my first oil change at 1,000 miles in 2014. At 50,000 miles the V6 still hums like a sewing machine

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Green Dragon: space

Well satisfied with a good product

When I purchased my 2014 Tundra, I asked the dealership service writer I have known for 25 years for a recommendation regarding motor oil. He suggested Amsoil. I have been using Amsoil in my Tundra since October '13; I also use Amsoil in my Highlander, my wife's Camry, my Honda lawn mower, and in my John Deere Diesel garden tractor. So far, everything still runs like new.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brad: space

Great oil

I run Amsoil in my truck and snowmobile.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Eric: space

This oil brings out the power

My car runs way better and bring out lots of power

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

Awesome Oil

Signature Series oil is unbelievable. I have had multiple vehicles with two hundred to three hundred twenty-five thousand miles on them and Amsoil keep clean like new. I also have 22 and 38 year old tractors that use no oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JP: space

All good

Never in doubt...

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Leaper: space

I would be this product again

Hands down the best oil I've ever used in all my trucks and suvs
I saw improvements in fuel mileage
Lower rpm at idle
Cooler temperatures
I will never use anything else but Amsoil

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Yan5366: space

Best oil ever

My bmw 328 run super great ... incredible in cold temperature....thanks

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Grumpy Too: space

I would buy Amsoil time after time because I want the best!

I only want the premium best for my new Camaro SS-That is Amsoil!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by G-Train: space

This is the only product I run in my cars.

I use Amsoil Signature Series in all of my cars, from my truck, daily drivers and four various Porsche models. Nothing better and I will never switch!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ZacG: space

Good stuff

It's expensive but for protection it's worth it. It seems to be the best wear protection of any oils I've tried in my various vehicles

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Josh: space

Oil

Use it in all my cars, only oil that my cars don't drink like water.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Camaro6: space

Worth the high cost

I have a 2016 Camaro ss that started to burn a little oil with the valvoline full synthetic I was using. I started using Amsoil and two oil changes later the car hasn't burned a drop of oil and the oil seems to hold up a lot better. I will only be using Amsoil in my cars from now on.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rat: space

Motor Oil - Diesel

Been using this oil for years.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dale: space

A must have oil for the cold region.

Switched over to Amsoil in my F-150 with the 5.4L Triton. Switch over with just over 100k on the truck. I did use the engine flush per recommendation. I did notice that it is quieter on start up at sub-zero(-20f) temperatures. I have oil pressure at turn key! A must have in the Northern area.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Higg: space

I will buy and use this product again

I use this 5w30 in a 2006 explorer with over 200,000 miles and have no issues.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shiz: space

Love it

Best oil in the market use it on all our cars!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Harry: space

Great Product

Best oil on the market. Buying anything else is foolinness.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by B: space

Fluids

The type of oils and fluids that go into my vehicles etc hands own #1 in the business you want the best from your vehicle then you have to use the best.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MTpDog: space

Excellent Oil

Excellent oil, I use Amsoil in all my mechanical equipment and they last a long time!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

I Will continue to buy again and again!

I use Amsoil in my pick up, I like the piece of mind of knowing I have the best possible protection for my engine.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

I continue to use this product

I am a relatively new user, but the research I have done has all been positive and enthusiastic, both from friends and online.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Barry: space

Great Oil

Decided to switch from Mobil1 to Amsoil for my Toyota cars. Went with the 25,000 mile oil so I don't have to change oil so often. Once a year oil change is perfect for me. Very pleased and it's such a better oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by 1973: space

Confident User

Used and followed Amsoil for most of the last 45 years. It's always got the job done and the 5W-30 has worked great whether it's winter or summer. Change it once a year and forget about it. Even in my older high mileage cars, they make it from oil change to oil change without having to add. I love it. Can't understand why anyone would use anything else.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Eric: space

I definitely would buy Amsoil 5w 30 again

I use the Amsoil 5w 30 and the Ea Amsoil Oil Filters in both my 2018 Chevrolet Silverado and Tahoe. The quality and durability of the Amsoil is second to none.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don: space

like this oil

noticed when i put it in the engine ran quieter

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bstill48: space

Great product

Great product. I drive 120 miles a day to go to work. I increased my gas mileage and can tell the difference in the engine in how quite it runs.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuckle Berry: space

buy this oil for all my vehicles

I use Amsoil for all my vehicles, have done so for over 15 years, won't trust their protection to any other oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by D: space

Signature oils

Great products keeps engines clean and lubricated

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jerry420: space

Only oil for me

I will only use amsoil products in my vehicles and for the price u can't beat it

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mel: space

Best oil in the USA

I use this oil in my ZL1 Camaro and it makes the car run cooler and the means that less friction, i have no dislikes

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

Nothing better

Nothing better out there for my 6.4 hemi.
And my sxs vehicle's

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Art: space

Great Oil

I use this on my 2008 Volvo C30R with 166000 miles. Engine runs smoothly with amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by K: space

Great

Oil is the best

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BillyO: space

Only the best for my Hellcat!

Have used Amsoil on my 2018 WB Hellcat since 1st. oil change with Extremely satisfying results. So happy use it in my Jeep Wrangler as well. Nothing but the best for my vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hey you: space

Good product

This was recommended for my vehicle and I have used other amsoil products in other vehicles and have blessed using it. Tks

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jube: space

Awesome stuff

I have been running an amsoil product in my 08 Toyota Tundra since new. When i say new i mean when the engine had enough km's that it was past the break in point I switched. I ran Amsoil XL for several years at the recommendation of the place i get my oil changes at. Changed it out every 6 months. I am pretty sure Signature Series was never recommend as they would only get my business once per year. Not knowing exactly what Amsoil had to offer I did some further research and discovered this Signature Series oil. I now change my own oil as I am able to order directly from Amsoil. I have been running Signature Series for about 5 yrs now with basically a once a yr oil change. I mainly drive secondary rds but come fall hunting seasons i am all over the backwoods. Here where i live it can get down to -30 at times during the winter. The flow rate is excellent in extreme cold as well as I always watch oil pressure gauge and no matter how cold it seems the needle always jumps up quickly on cold start up. My truck now has 271,000 KM's on it. Even with once a yr oil changes the oil doesn't look alot darker than it did when i changed it the previous year. Great product I can't imagine running a different oil in. I now have my son's truck running on Signature Series as well. I plan on putting 1 million Km's on my truck!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Frank: space

MPG

2017 Tacoma TRD Off Road struggles to get 18mpg. Used Signature Series Synthetic and now getting 20-21mpg.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Frenchbernie: space

Since I've discovered this product.

Discover Amsoil in 2012 & have slowly been converting all my vehicles to Amsoil. Even converting friend but they are harder to convince because most rent their cars & basically don't care if they last or not. Consumer society. That being said all my immediate family use Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Upschuck: space

25+ years of use

Save time, money and engine wear. Have used Amsoil in all my vehicles and equipment for over 25 years and and have not experienced an engine failure.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Clint H: space

Love the Extended Drain Interval

Been using Amsoil in my Dodge Dakota since I purchased it 13 years ago. Today it has 250,000 miles on it and still runs great.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hard Rock Rubicon: space

Only the best oil for my Jeep

I have done only a couple of oil changes on my low mileage Jeep but I wanted the best oil and have no regrets with buying AmsOil signature series oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Oil buyers: space

It's amsoil

I'm not sure how you review oil.
When I opened container, the oil, was oily. So I put it in my engine.

My engine has not blown up, so I assume it's the right oil.

I'll keep buying their oil, until it no longer feels oily to the touch straight out of the bottle.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Glen: space

I use this product all of the time

I have a 96 Chev C-1500 with over 360k that has had AMSOIL in it for over 350k without any failures. It runs good and sounds like it has a new engine in it, but its the original without any major work on it. I also use AMSOIL in the transmission and the rear gears. I have had a valve cover off and you wouldn't believe how clean it was on the inside, no sludge.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

A well oiled machine

Feels and runs smoothly !

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ken L: space

I would recommend to everyone

Excellent protection

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bubba: space

I will use this only

I highly recommend this product. I only use amsoil products in everything from my compressor to my vehicles. They have done there homework to produce great products.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vic: space

Good quality

AMSOULS NEED RETAIL OUTLETS
TO ADVERTISING.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JerseyGray: space

Best on the Market, Hands Down

I use Amsoil in everything from my truck to my motorcycle, lawn mowers, generators and anything that takes oil. I also use the oil filters, gear oil, and everything that Amsoil makes.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rdskelton: space

I love it

Oil pressure is improved with this product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

Only the best

While I can't say the car runs better with this vs another top synthetic, I have hundreds of thousands of miles on my vehicles with this oil only changing once a year. Great stuff!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

Recommended for Boss 302

Trusted product! This particular oil was made for my engine what can you ask more? They took the time and knowledge to make the oil possible for my car... its really a no brainer! Nice to have a compagnie that's back you up!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Randy: space

Best oil and filters on the market in my opinion

I have been using AMS Oil for 18 years and wouldn't use anything else. It is by far the best and all of my vehicles with several hundred thousand miles on them combined is the proof.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Curt: space

Retired Truck Owner/Operator

I doubled my miles between oil changes which saved me money, I use it in my small truck also.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeep Lover Josh: space

Test Results Fantastic

So I run Amsoil signature series in all my vehicles. I run 5w-20 in the 2015 Jeep Rubicon Hard Rock and when I changed the oil at 7000 miles of use the oil lab came back and said to change at 9000 next time and see how it's doing. The wife's 2011 Subaru Impresa 5w-30 oil was changed at around 7000 miles as well and the results were the same! I think once the oil is tested at 9000 they will most likely advise I go even longer. They measured for contaminants as well as assessing the TBN which both came back outstanding, and both engines have zero issues. Black Labs is where I send my oil. The higher price for Amsoil is worth it in my opinion especially when I can go so long in between changes. It pays for itself.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by oneshot: space

I have used Amsoil in most of my vehicles for many years.

I have numerous vehicles with 60-400,000 miles on them that have been running Amsoil most of their lives. All still have original engines. What more can I say?

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jordan: space

Definitely would buy it again

So far so good. Only have 26k on the car so far.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gator Shelby: space

Best Price

The best price and solid transactions

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Oil Fan: space

I use Signature 5W-30 in my daily driver

Used to go to quick non-synthetic oil change place until they stripped my oil pan threads. Decided to change my own and use Amsoil. Was changing every 5000 miles before now going 10,000 miles. Materials cost is more, about what materials and labor was before but I'm going twice as far.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Great OIL!: space

Great Oil

Have been using this oil since around 2006. My 2006 Ford E350 work van has145,000 at 15,000 mile change intervals before I sold it . My 2006 E350 15 passenger van currently has 185,000 at 20,000 mile change intervals. Great oil have had no issues with it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wilson: space

I would buy this engine oils again

Engine has been running smoothly after changing into this signature oils.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LDW: space

Been using it for years

Best you can buy for your vehicle.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brogan: space

The oil I've been looking for

I was nervous switching from high mileage to a full synthetic, but 84 Chevy pickup now runs better than ever and actually has less leaks now. I also run this same oil in my 84 Honda Nighthawk motorcycle.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ron: space

If you want the best oil this is the one.

All I use in my vehicle's is Amsoil ...I wanted to put good oil in my vehicle's so tryed Amsoil and been using it for 20 years now. It's the best hands down period...

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The Mechanic: space

Highly recommend.

I have used this product for years, I wouldn't trust any other product in my vechicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by G'd up from the feet up: space

Using this oil from here on out

Solid oil that's maintained it color and viscosity for 3k+ miles of spirited day to day driving

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sam: space

Simply the best engine oil for GDI engine

This oil controls carbon buildup on the intake valves of gas direct injection engine. lowest evaporation rate.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

Amsoil Signature Series

I have been using this product on my 2010 Mazda 3GT since new. I am nearing 186,000 miles on the car and have the oil checked at every change. The analyzers are always telling me the oil has more life left and everything looks great. I will be using this product in every vehicle I own and recommend it to everyone who asks. A first rate product!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SharpSmith: space

Highly recommend this product

As a mobile sharpener, I put a lot of miles on my vehicle. By using AMSOIL, I have peace of mind that my van will run smoothly for a very long time. I highly recommend this product!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JK: space

Yes

I use product in my 2016 2.4 litre canyon . It's a great product but my engines seems consume some of it . A litre on 5000 km disappears through exhaust .

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Felix: space

Will continue to use this product

Long lasting great protection

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joelon: space

Simply the Best

Going on 7k mile oil change...oil still looks new... Car performing well. Amsoil is the best of the best.. you get what you pay for...no more mobile one or Royal purple for me ..never again.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

I WILL BE BUYING MORE!!!!

I wouldn't use ANYTHING ELSE!!!!!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pedro: space

The best motor oil and product !

I be using amsolil in all my car back front the 1990 I never have any engine problem. All my cars run good and I put a lot of miles and the engine always run good ! I have 2014 Acura MDX I be using amsoil when the car make 7,500 and the car still running like new !

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pedro: space

I start using Amsoil in the 1990

I be using amsolil in all my car back front the 1990 I never have any engine problem. All my cars run good and I put a lot of miles and the engine always run good ! I have now a 2018 Accord that only have 9 months and have already 31,000k and I be using amsoil when the car make 7,500 and the car still running like new !

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JetAMT: space

Sense 1982

This is hands down the very best oil you can buy. Been a faithful Amsoil user sense 1982. The very best protection there is

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JT: space

I only use this product for my cars

When servicing my vehicles with Amsoil Sinature series oil, the dealer always comments on how there are no leaks. It also increases my trade in value when I upgrade. Never a complaint.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mal: space

Great product

Using this Motor Oil puts me at ease and you can depend on it to so it's job. I have used Ams Oil for years now and it keeps your engine running as quiet with nearly 200,000 miles on it as the 1st day you got your car. It definitly keeps your internals sludge free. This I have experienced first hand. Oil pan and valve cover removal.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tarzan: space

This high quality product is the best!

I use Amsoil products for all of my lubricants in all my vehicles and equipment since 2015. I am very pleased with the performance and protection and am convinced these products are second to none. I bought an F-150 in 2015 that sounded like the transmission was ruined, put in an other brand of transmission fluid and nothing changed. I then put in Amsoil transmission fluid and it immediately fixed the problem. I haven't looked back since. I know the products might be a little more expensive then some, but they are the best. Thank-you for putting out a great product that is a valuable investment for hard-earned money!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dust: space

Awesome product. Will be my only oil from now on.

Great Product, run the small engine oil in my Kohler whole house Generator.. runs cooler , quieter and I know I'm using the best oil between change intervals... also I have a 2005 F150 with the 5.4 Triton Engine.. everyone knows about the problems with these motors.. switched over to Signiture 5w-30 a couple years ago.. runs a lot quieter , cooler and just seems to purr .. yes I know the motor specs 5w-20 but it does honestly run better and have had 0 issues with the motor.. ... Bought truck new in 2005..

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Greg: space

Great products

Use it in everthing

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by none: space

Quality

I use Amsoil because it is the best oil. I recommend it to all my friends.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Phil: space

Best protection for your engine - period!

I will only use Amsoil lubricants in my vehicles and power equipment. Amsoil products are the best protection I can get and give my investments.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Best oil I've tried

Had royal purple in my wife's Dodge Durango 5.7 V8. If it sat for a few days and I started it I could hear a valve knock that lasted a few seconds and sounded bad. I've had this amsoil in with amsoil oil filter and I can leave it sitting for a week and start up sounds completely normal. I can tell I'm getting proper lubrication and I trust amsoil because of it. Also put it in my Cummins diesel and it's smooth as glass as well. I think I'm amsoil for life.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pontiac 6: space

Best oil on the market

I have been using Amsoil oil and filters for about 20 years and in my opinion they are the best on the market. I ran a 2001 Chevy Blazer 25K miles between changes with absolutely no problems and it was still running perfectly with 109K miles on it when I sold it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Josh: space

Great product

I use this oil in my 98 wrangler works great

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by VQ35DE: space

180k strong

She still beats a GT Mustang after 14 years, running Amsoil since the start

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by AmsoilGuy78: space

Best Ever!

I run this in all of my vehicles. It is worth every penny for sure! You won't regret buying this.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Timothy A SFC RET: space

The only oil I will use

Phenomenal product that is worth the price. Yes it is expensive initially, but it has stood up to some hard usage with issues. 20K oil? Bet on it!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Adil Ejaz: space

Awesome Product

This is the best oil I have ever used

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Stephen: space

A product I trust and use!

Using Amsoil products for over 20 years and nothing else...

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ain't got time: space

Amsoil is great

I use Amsoil, dual bypass oil filtration, and test lab analysis to support extended oil changes. Lab analysis has shown me I can run almost 40K miles without changing oil. I sometimes drive 1000 miles a week or more for my job; and monthly oil changes simply don't cut it. Amsoil does. I spare not the miles and trust Amsoil to go the distance; I have independent lab analysis to demonstrate it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr Ed: space

Best Oil Around!

It's the ONLY oil I will allow to be used for my Shelby GT 500! Provides the greatest protection for the high performance engine!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Asphalt F150: space

Only oil/filter i will ever buy

I use this oil in my 2013 F150 with the eco-boost 3.5L engine. Truck burns or uses zero oil between oil changes(once a year). I only drive about 7,000 miles a year. I use Amsoil because I know Amsoil makes the best products available.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bubba: space

Long time user

Been using AMSOIL since the 70's in many cars and trucks. Sold one truck to a mechanic after 204K miles. He said it was the cleanest engine he' ever seen.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by rrigsby24: space

If your not an Amsoil guy, your doing it wrong

Customer for 7 months. I can't say anything someone else hasn't said already. This was for my Dad's girlfriend car. We have my truck, his truck, her SUV, my mower all on amsoil. My truck is all done. Engine, tranny, rear end, transfer case. Waiting to put in coolant. It sells itself. They say everything drives.i use signature series and will never use anything else in any motor I ever own.dealerahips can say whatever they want, just stinks you have to change within a certain mileage to keep warranty cause this oil goes forever compared to rest. Use it and see!!!!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sierra owner 12: space

Good oil, keeping the motor clean

I chose to go 0-40 for both cold flow and film strength at the running temps. Motor is getting cleaner every oil change and is running great. I tow with confidence and will continue to run the first in synthetics

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TM: space

Best oil you can get!

After switching over to AMSOIL Signiture Series 5W30 in my '07 Prius, I couldn't be happier. The gas motor is running very smoothly and more efficiently since I have owned it! Not too shabby considering it has 124K+ miles on it! This oil is the real deal. If you are serious about keeping your car in the best condition for as long as possible, there isn't a better oil out there that can deliver on that than AMSOIL.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike T: space

Best oil I have found yet

Back in 2006 I have swivhed from other brands to Amsoil. Based on some independent test results, and most importantly a friend. Who have tested his 12000 mile oil being Amsoil, on 45000 mile vehicle, that used amsoil since new. Test results sugested fillowing: 1) oil is 6000-7000 mile old 2) engine is 15000-25000 miles old 3) if lubrication continues as before, engine should ladt over 300000 miles.
That was enough info for me to switch, also Mobil 1 that I was using at the time, came with less promising test results.
Since the switch I have been using Amsoil in every car, and truck I owned. Never had a failure due to lubrication. And most importantly have saved a bunch of money, on changing oil once per year. Signature series, along with EA filter can last up to 25000 miles. I would never go past 15000 miles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Duff: space

Best stuff

I have a 05 ram 2500 HD 250000 miles on it still runs like a dream

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

In year's past ....

I used this blend for years until I changed to the European blend and it worked very well ....

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mario: space

Yes

Good

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick/repair tech/enthusiast: space

Best oil you can buy

The highest quality oil for everything with and engine, hands down.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big Al: space

Great stuff

I've used Amsoil over the last 30 plus years and never had a problem with any of the product. I use it in offroad vehicles, 4x4 Jeeps, turbo charged engines, NA engines and anything else that benefits from a high quality synthetic lubricant.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hubert: space

I have been using Amsoil products since 1984.

I have been using Amsoil 100% synthetic engine oils in all my cars, my wife cars since 1984.
At first it was 10w-40 AMO, then in 2002 I switched to 5w-30 ASL. I refuse to use the 5w-20 and 0w-20
oil, I feel my engine is better protected with the 5w-30. I also use the oil filters, the grease.
They are simply high quality, great products and the service is great. I order online via the Amsoil website since 2001. I get my order within a couple of days, and there is never any mistakes.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tads Subaru: space

Top quality oil

I have used Amsoil signature oil for over a 100,000 miles in my vehicle. I tried other oils but they did not last or perform up to my standards.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Racing girl: space

This is my go to for my truck

I can go a long time between oil changes with the signature series 5W 20 oil, it is amazing how much better my truck has been running since I have been using it. I haven't found a con with it yet, just all pros!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jay: space

GREAT STUFF

I have used Amsoil for many years, I use it in all my vehicles everything from my daily driver to my classic and antique cars, I even order it for my friends and family who all love how it works and the convenience of use ie. Once a year oil change.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sacco: space

I would buy this oil again

.............. .............

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry: space

Good Product

AMSOIL Signature Series 5W-30 Motor Oil
keeps my car running smoothly.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Animal: space

Great product

This product has Pierier antiwear property is

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

I always use Amsoil

I've been using Amsoil oil for more than 20 years so when I bought a used 2011 Toyota Highlander that requires 0W20 oil I chose Amsoil Signature. I noticed that the my SUV used less oil with Amsoil compared to whatever the dealership put in it. I've had several vehicles that even after 10,000 miles used virtually no oil when using Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by None: space

I love the oil, all of it.

I have been using Amsoil for years. Commutes for me is 40 to 50 kms oneway and I can run Amsoil and never have to add oil. Had an old car overheat in Calgary one summer due to traffic on the deerfoot trail and there was no problem afterwards with the car or the oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Trevor: space

I have bought this for years!

I have used this product for years, it gives my vehicles top notch protection!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Harley Cop: space

Beats sliced bread and bottled beer

I have used Amsoil products since 2003. Never a problem. I have recommended it to friends without any qualms.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DJM: space

Best product ever, life time customer

Ever since discovering this oil in 2005 I've never used anything else, and it's never let me down. 15k miles between oil changes and it's still gold in color not black like others.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Love this product

I use the product in my 2013 Dodge Ram 5.7L.
I believe I have increased fuel mileage and the truck runs great!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DoubleD: space

I will never buy another oil again

I have used amsoil in my motorcycle and personal vehicles for years. All of them perform perfectly.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lando: space

I would buy this product again and again

Product works amazing! No issues

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ernie: space

I will buy all amsoil products especially oil an power foam

Love the oil never had issues power foam is the best out there if ya know how to use it correctly.. very happy with the results and products..

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Andy: space

I will use this for as long as I live

Amsoil is de bessss!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Smilinjack: space

Never lets you down Never fails. Actually works as advertize

Smilinjack has been using AMSOIL 1030,1040 2Cycle oil, Power Foam, oil and air filters and Performance Improver continually since 1979. Once we tried it, have never ever needed or used anything else. Automotive use, lawnmower, lawn tractor, boat motors and my portable generator all perform well with AmsOil in the crankcase. Excellent products. Knew a good thing when we first found it and will never go to anything else. EOM

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

I use nothing but Amsoil for the last 8 years.

Great product, love the extended drain capability.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Amsoil Signature Oil

I have been using Amsoil in every vehicle I have owned for the past 15 years. I like the extra protection and only changing oil once a year.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

yes

your car runs great

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

I keep this stuff in my shop by the case.

I just had a 600 horse 460 Ford built and put in my truck and this oil is the best insurance for a hydraulic roller cam motor in my honest opinion..

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

Great product at any price

This product goes in all my vehicles!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Alex: space

Will buy again

Used it in my 2015 Ford Fiesta rally car. Seems to be working.
will buy again in couple months when time comes to change oil and filter!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mack: space

ONLY THE BEST WILL DO!!

Well, I am not the guy who owns a mega-truck or 5 SUV's. I have the "love of my life" who's stuck with me for 38 years and a major cardiac failure. My goal is to make sure that this investment of my life sticks around for awhile. Everyday she gets in her 2013 Honda CR-V and takes to the roads. Her rig WILL have the BEST I can afford protecting her. This is why when it comes to the products you make, they will be used. When the BEST is used there is no need for excuses!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Craig Sr.: space

Don't know where to start when talking about GREAT PRODUCTS!

I have been around cars and trucks since I was 11 years old...rebuilding, normal maintenance, restoring, and mechanical. At almost 70 I can tell you that my pride and joy is a 1998 Chrysler Town & Country LXI mini van. I proudly have 385K Amsoil miles and it still runs like new. I get exceptional mileage, no smoke from exhaust, no rough idling, no engine noise (that most older motors get), and can say after sitting in the drivers seat all those miles...I still love to drive it and see what new gets better! I am constantly surprised at how smooth a quiet the motor runs. When I take it get my tires rotated they always comment on how well it runs...here is the irony. When trying to explain about additives there is a blank look as people just don't understand that synthetic oil is engineered not manufactured. A lot of time, research dollars, and effort has gone into the making of each product. I will always explain the benefits of Amsoil when asked...just get tired of people that are ignorant to the science and technology that has made this product what it is. I have been a 20+ year user and will always continue! Thanks Amsoil for sticking to your desire to be the best!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dennis: space

I will buy this product again

I use this in all my car's and trucks

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Derek: space

I wont buy anything else!!

Best oil on the market!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jerry: space

I like Amsoil

I've been using Amsoil products for many years. I don't have to worry if I've gone over the 5,000 mile interval, because I know Amsoil will protect my engines. The oil filters are top grade, and great to use with Amsoil. I also use many other AMSOIL products. The gun cleaner and gun oil is excellent for my police service revolver and I use it faithfully, knowing it will protect my pistol, shotgun and assault weapon. The cost may be slightly higher, but the protection is excellent and guaranteed to perform.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Boosted: space

Best oil on the market

It's simply great oil made for great engines.
If you have a boosted engine stick with the best, you won't regret it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bones67: space

So not want to useat any other oil

Have used for years on my 2000 Chevy Impala, 1995 Toyota corolla, 2010 and 20 12 Toyota Prius, and will be on my 20 17 Rav4 b

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by C6: space

Ow20

Oil exceed all expectations.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Danny: space

Love this product

In my truck

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jake: space

Great product

I use it in my 2014 Chevy Silverado

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike D: space

Only product I use

Since day 1 of the first oil change, and several others, 45K miles later it's still running like a champ. I've been using Amsoil for years. Nothing will change my mind.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wheelchair Pete: space

Great all season protection, IMO

Been using this in my DD/cars for the past 10+ years and never any oil issues.
Good stuff.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LadyTuner: space

11 years of the best!

I converted my car to Amsoil 11 years ago when I first bought her. She was 4 years old and had 78k miles. Once I changed her to Amsoil, she instantly ran better. Now at 176k miles, she has the cleanest valves any mechanic has seen! I'm proud to be raised on Amsoil

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cycotravlr: space

The Best

I use Amsoil Signature Series 5W-30 sinthetic oil in my 2006 Solstice and my 2013 F-150. Amsoil is the Best and wouldn't use anything else.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by racinjayson: space

I have bought, will continue to buy

This is a great product and I use it in all of my vehicles. The biggest difference is that all my motors run quieter than any other product I have tried including royal purper. Could not be happier.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

Amsoil is the only fluids I use, period!

I have 0 complaints about any product that I've used yet. My 06 Silverado and 07 Trailblazer both get Amsoil. 15k Mike changes with 0 issue

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GREEN FLAMES: space

1ST TIME BUYER

I HAVE A BRAND NEW 383 STROKER ENGINE IN MY 2004 SILVERADO. IT WAS RECOMMENDED TO PUT A GOOD OIL IN MY ENGINE AFTER THE BREAK IN OIL WAS CHANGED.READ REVIEWS ON SEVERAL DIFFERENT OILS AND REALLY LIKED WHAT I READ ABOUT AMSOIL. WHEN I FIRST GOT MY ORDER IN THE FIRST THING I NOTICED WAS THE BOTTLES WERE MADE DIFFERENT THEN ANYTHING ELSE I EVER USED. THEY WERE THICKER PLASTIC AND ARE POUR FREINDLY. DIDNT NOT HAVE TO WORRY ABOUT SPILLING OIL ON MY NEW ENGINE.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Stan: space

Best there is

Best you can buy.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kyle: space

My go to oil

Great product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris W: space

I WILL buy this product again.

AMSOIL is THE ONLY oil and lubrication product I use in everything I own. I would put this up against any other synthetic lubricant any day.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dennis: space

I Would definitely buy this product again.

I have been using this oil in my06 Dodge Ram for years. Makes better oil pressure than other brands.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rusty: space

Great oil

Run, it in all three vehicles that call for 5 w 20wt.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Quality product

I have used Amsiol products in all my vehicles for several years with good results.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mismo Titan: space

Titan Loves It

Switched to amsoil and my engine is quieter, and runs better. I tow a lot with my truck and know with amsoil that the oil is breaking down under heavy load.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Blu1: space

Few choices

Not many choices for 5w-50. This is the only real quality option. Thanks for making the wt.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cliff: space

There is no other oil like AMSOIL

I own a pickup and two autos, two utility tractors, four chain saws, three weed eaters and eight small engine machines. I have AMSOIL in each and every one. My Pickup is used to pull a large trailer and for snow plowing for several customers. I also use fuel cleaners, fuel preserve products, oil mix and grease gun tubes. I have experienced oil leaking and oil burning motors stop doing both and a one pull start on the small motors.There is no other oil and other products that compare to AMSOIL.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CJ: space

Long time uses

Been using Amsoil 20 years and have had no problems. Put oil in my Durmax and put the big filter on and did need to change oil only once.
Amsoil has been making oil for years, now everyone is trying too.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cycotravlr: space

I will buy this again.

I use 0-20 Amsoil in my Family crossover. I run it 15,000 mile between changes and the oil still looks clean when I drain it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Collin: space

I will only buy this product from now on

The Signature Series oil is the best and most money-worth-it oil that's available from Amsoil...period!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by headhound: space

Keeps my cars running long and strong

Minimizes actual engine wear while managing fuel economy. Yearly oil changes is great.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Otsg392: space

I will buy this product again.

I put Amsoil 5w - 50 I'm my 2012 Boss 302. Product works great for regular driving or hittting the track.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The bear: space

Have used this product for over 25 years

I used this product in my SUV, runs smooth get better mileage and start very well in extremely cold weather. I used their product in all my vehicles and small engines.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry for Life: space

Incredible Stuff

Amsoil makes a huge difference in the performance and longevity of your vehicle. Nothing else goes into my cars, trucks, lawn mowers, chainsaws, etc.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike G in SD: space

I will buy this product many, many more times...great stuff!

I've been using AMSOIL motor oil for just over 5 years now and been very satisfied, no complaints...ever!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Al: space

Great product

I use it in all the engines in my house. My cars, lawn mower, pressure washer and generator. I feel my equipment runs better and more efficient.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by soOldithurts: space

Use it in track car and without any problems

I use this oil in my track car. I have a magnetic plug and nothing has shown up there. The filter is also clean after each use (I check it). Oil pressures are good on track. I plan to use this oil well into the future.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Andrew: space

I would definitely buy this!

I run this oil in my 2003 Honda S2000 and I love it. Had my head rebuilt and checked the cylinder walls, cams, etc. with 111k miles on the engine with force induction. There were barely any wear at all! I will always run Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vader3: space

This is the only oil I will use is my Chevy Blazer

I use the 5W30 along with the Amsoil oil filter and I run it 15,000 miles before I change the oil. I also use the Amsoil AFT which can keep the transmission temperature up to 60 degrees cooler. Reduce friction and save your equipment

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Paul: space

Been using for years

I use only Amsoil in all my vehicles--engine, trans, and differential. Best products on the market.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Drake: space

Will buy again

Lasts well. Color is still clean after 5k. Gas milage is slightly higher. No oil leaks in a Ford Taurus with 200k.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JHPAINT: space

Great product

Great oil for direct injection engines

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Johny: space

Been using this for 15 years

I've been using this since 2003 in my Toyota Solara that has the V6 which is prone to sludge. I now have 470,000 miles on it and still running strong and does not smoke. I change it and the filter about every 10 to 15 thousand miles, sometime longer.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JC: space

Great Product

In work&personal vehicle.Work car approaching 300,000 miles-Starts easy in old weather-improves gas mileage-don't have to change every 3000 miles as you have to with conventional oil-can't think of anything negative

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by drew: space

High Heat Low Friction

I use this oil in a variety of cars and trucks i service. Some of these cars are turbos and some are natural aspiration. No matter the heat load in any of these cars or trucks they seem to have extremely low friction when i inspected during engine rebuilds.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Drew: space

The Best Oil Ever Made

I buy this oil about once a year for a friends 2004 Lincoln Town Car. He only drives around the city and occasionally to Richmond Virginia. He always gets a 19~20 mpg in the slow city with the ac blasting and on the highway 25~27 mpg. That is a 280 hp 4.6 liter v-8. The engine runs so smooth now its a huge difference from before the use of amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Yes

In my motocycle

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

Simply the best

The to go motor oil for all 0W-20, 0W-30, 5W-20, 5W-30, 10W-30 applications except europeans.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sam: space

My engine is super quiet now

My engine is really quiet now. That tells me that Amsoil is lubricating the engine in a way that the other oils can't. I changed all the fluids on my 2017 Chevrolet 2500 HD 4x4. Fuel mileage is up and vehicle noise ( engine, transmission, transfer case and differentials ) is down. it truly makes a difference.
I've also switched to Amsoil in wife's 2017 Ford Explorer, my son's 2015 Ram 1500 and my 2015 Tahoe Q7i SF boat.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Poppabear: space

Love this stuff

I use Amsoil products in my truck and my wife car. I started using Amsoil products in my race car many years ago and had such good luck with them I have been using them in anything I own with a gasoline engine. My truck has over 200,000 miles on it and it runs like new. We use my wife's car for road trips and I always ride with confidence in Amsoil products. I would definitely recommend Amsoil to family and friends..

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

oil

great stuff

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Two Hair: space

I have been buying this product again and again

I have been using this product (5w-30 signature series) for sixteen years. A little better gas mileage and I feel the auto is better protected in our high heat that we get during the summers here.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

Very good product and very reasonably priced

We Transport trailers with our pickup and run only Amsoil in it. Love the extended oil changes, especially since we run so many miles. Because of the ability to run more miles on it, it actually is cheaper to run Amsoil. Wouldn't run anything else!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KB: space

Best Product on the Market

By far the best motor oil I've used!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Buy nothing but smsoil.

Use it in honda crv.Great oil. Long life.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pose: space

Engine Oil

I only trust Amsoil in all of my vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dale: space

Mechanics Amazed at inside of engine during gasket repair

A couple of years ago I had my 1998 Chevrolet Silverado in the shop for an intake gasket repair. About mid-day I received a call from the repair shop asking me what kind of oil I ran in the engine. They were amazed as they told me they had never seen an engine so clean inside. I told them I had been running Amsoil in the engine for the past 1.5 years. I had heard of Amsoil for years and talked to a diesel mechanic a few years before and he ran Amsoil in everything he had. I figured if a diesel mechanic ran it in his vehicles, motorcycles, and lawn equipment it was good stuff. I have not been disappointed, I immediately noticed easier cold starts and better gas mileage in my vehicles. With the miles my familiy's vehicles travel, a once a year oil change with the extended life best synthetic oil on the market is a convenient and cost effective solution for ensuring my vehicles engines are protected with great lubrication. And the added bonus of creating less waste for our environment is big for me as well. Convenient online shopping and dependable delivery put my vehicle's lifeblood in my hands within days of ordering it. Love the product and will be using it for years to come.
Dale

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jean: space

i would buy more

very good

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by daves jeep: space

yes i would buy it again

its a great oil I have every use in my cars!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dan: space

Nothing but the best

I use Amsoil oil for everything I own car pick up motorcycle lawn mowers weed eaters I wouldn't use anything less
The best is Amsoil oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shane: space

The Best

I have tried every synthetic oil over the years.Then I tried Amsoil signature series 5w-20 in my 2017 dodge Ram with the 5.7 hemi.Notice a big difference in smoothness and performance,like pouring a few energy drinks in the engine!!! I change my oil every six months, I wont be close to 25,000 miles but if I go over six months I know the engine will be okay. I have changed my oil with other synthetics that claim they can go 15,000 or one year, I changed mine at 6,500 and it was black and smelled burnt and was already starting to sludge.You won't get that with Amsoil. It cost a little more but it's well worth it !!! If your going to keep your truck or car for a long time Amsoil is the way to go,If you lease every two years don't bother.Give it a try it's THE BEST!!!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Binor: space

Only oil I use

The day I bought my 2005 F250 4x4 I brought it home and drained the stock oil and refilled with 0W20 amsoil and amsoil oil filter. Since that day my truck has never seen any other oil or filter. My truck is now 13 years old and it runs like the day I bought it. I change my oil once a year no more no less ! ! !

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JC: space

Signature series 5W-30 motor oil

I have used the Signature series oil for years. I like having the protective properties of the oil with extended change intervals. I have one vehicle with over 225,000 miles runs great and uses zero oil between changes.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

A top oil

Use this in my Mustang GT....won't use anything else. Lots of debate as far as what's best but this is my favorite.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David: space

If there was a better lubricant anywhere, I would be use it.

I have been an AMSOIL user for many years, and as a mechanical engineer know the value
of proper lubrication. When you know a company is using the best additives, and the best base stocks for their oil, the choice of where to buy is easy.

In the final analysis, AMSOIL is a bargain compared to other brands.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

Go with the best!

AMSOIL is in every engine I own!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Michael: space

Awesome

Simply the best oil to use. Thank you amsoil

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sean: space

High quality

Like all signature series it is the best oil I've used. Amsoil is one of the few oil manufacturers that shows testing results. They also sell testing kits. Their oil is top notch. Mobile 1 annual protection is basically a cheaper version of this. ( as it's not as good) if you want the best protection this is it. It also pays for itself as you can run it longer.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Christian Marcel: space

Too good to believe.

On January 20,18, I purchased a 2008 Dodge Durango w/ a 5.7, 4x4. It had 89,000 miles on it
The average mpg was 13.4. I was not impressed, and I don't drive like speed Racer. I do love the truck the power and the ride. I had used mobil one synthetic oil and filters with no change in mpg. So I decided to invest in Amsoil. I went with the recommend 5/20 signature series. I believe go big or go home. My mpg average moved up to 14.5 mpg. I also took a 4 hour each way road trip and got 19.9 mpg at 72 mph. I thought that was good for moving an 7000lb. all wheel drive vechical.
Any way I then decided to go all in changing front & rear diff and transfer case. I am now getting an avg mpg of 15.7. where I am now in Ohio it is hilly, so once I return to flat Fla I expect even more improvement. I am a clean oil fanatic, so I installed a oil bypass system. I have 2000 miles on the oil and it still looks like new. Yes bypass system and filters and oil cost a bit but the return on investment is after 25000, If you change your oil every 4-5000 Miles. The cost of Oil & filters saved, and engine wear reduction, pays for itself in no time. I keep my vechical s for a while. My suggestion is to change over to Amsoil signature series oil and 25000 mile filters. Oil is the cheapest thing you do for your vechical, do the best and I also suggest doing the bypass system. You save money in the long run while giving your vechical the best protection out there. I am Looking for a location that will use Amsoil to flush my transmission fluid. Even if I bring it in.
Hope you find this interesting and helpful.
Christian.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jason: space

Good Oil

I run this oil in my 2011 Land Rover LR4 with a 5.0L that requires synthetic oil. I've had this oil tested at the manufacturer's recommended interval of 7500 miles and there was still some life left in it. The next time I went to 9000 miles and had it tested, this time the oil was no longer good, so I'll stick with Land Rover's recommendation. This is with Land Rover's canister oil filter. Amsoil doesn't make a long life filter for it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Oscar the oily otter: space

Heck yes

Been using AMS in all my vehicles for 15 years . Have not had any engine oil related problems yet!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by AK: space

Over 200K and going strong.

I have a Toyota Corolla I bought new in 2007. It now has over 200K miles on the odometer. It has had only Amsoil and the only thing I have had to do is normal maintenance and it still gets over 30 mpg. Amsoil is the only oil I use in all my vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The Duke of Earl: space

Best Oil on the planet

Had my oil changed at a dealership. They showed me some black sticky that came out of the oil pan. I called AMSOIL with my story and they had me send in a sample and some of the oil that drained. They did a thorough check and found that the oil had not failed in any way, some other contaminant apparently fell in while under warranty gasket replacement. Great company that stands behind their products!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tootall Ted: space

Many miles!!

1993 Cadillac Sedan deVille. 4.9 liter aluminum block engine. 351,136 miles!! Enough said!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

Use nothing but Amsoil in my vehicles.

Use at the recommended Amsoil oil change intervals. Never had any engine problems.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tuff: space

Tuffy

Just and great oil .

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robin: space

I would buy this product again

I run it and all my vehicles love it

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

I will be buying this product as long

2008 Lexus

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by 1968 AMX: space

AMSOIL beats everybody & More MPG

I am truly convinced that AMSOIL synthetic oil is the highest quality synthetic oil in the marketplace. I believe in my heart I get more MPG with this Signature Synthetic oil. I have been using it in all my hybrid cars for last decade or so. I love the quality, customer service and want to keep supporting this quality company. Keep up the good work AMSOIL.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Car burns less oil: space

I have switched to this exclusively

I saw a forum post with some oil test results. Amsoil was at the top of most of them. I switched to this in my 2002 Honda s2000. I'm 1 oil change in and my car hasn't blown up yet plus it burns less oil than with Mobile 1.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rookie: space

Best I've used.

Improves Gas Mileage.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PW John: space

Best oil for a hemi

I have a 2007 Dodge power wagon with the 5.7 hemi. I work this truck hard, and this is the only oil that cures the notorious hemi tick even with 130000 plus miles and oil changes every 15000 miles. Well worth it if you love your truck.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Raptor guy: space

Love the products

A little pricey but peace of mind knowing that you have put the best you can buy into a truck that costs a bunch ! As crazy as I know this sounds I went from 13.1 mpg to 15 mpg only changed the oil . Is that even possible???

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Armymedic: space

Awesome

I have nothing but good to write about this oil. I change my oil once a year, and change the oil filter twice a year, every 6 months, however. That's based on my driving and may not be on your driving habits. I would follow what Amsoil recommends when using their oil. Other than that my mechanic comments how great my car runs, because my last car I put on 250,000 miles without a major breakdown. I highly recommend Amsoil products.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ricky: space

Oil

Excellent product. Bike runs cooler and smoother

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bam Bam: space

Needed the best protection

Just bought a 2018 Jeep Wrangler and wanted the best protection .... The same I had using Amsoil on my 1994 GMC 350k miles and 2003 GMC 230k..

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cleve: space

Oil

I buy Amsoil because it has always worked for me. I have over 200K on my 97 Jeep, and the last 3 of my wife's vehicles went over 200K, one went to 286K before I traded it off.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ug_boy: space

smooth as silk

run it in my wife's CRV. I don't trust the Honda oils as they sludge out when converting to AMSOIL. Thankfully this is a new car, so I won't have this issue. A clean motor is a happy motor!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JD: space

Overall happy

I am more than willing to pay a bit more than the rest to have significantly better oil protection. Read the independent reports, Amsoil is bar none the top dog.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Del: space

Owner

I've retired 2 Ford E-350 vans, gasoline engines, both with 520,000 plus miles. I'm currently driving a third one, with 524,000.
I started using Amsoil, 100% synthetic, in each of these between 50,000/60,000 miles.
I also used the recommended Amsoil oil filter.
Changed oil every 18,000, and filter every 9,000.
Over the years and miles, I've saved myself a lot of time and money with Amsoil, over conventional oil and their oil change cycle, about 6 to 1.
Also saved a lot of money in vehicle replacement cost, because of each vehicle lasting about twice as long with Amsoil, over the normal.
Yes I'm a pleased customer!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doyce: space

Only oil I use

Change oil every 10,000 to 12,000 miles. I know it would go longer, but I know for sure my bike is ready for any demand I ask of it.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mailman: space

I would buy this product again, and I have.

I love this product. I have not had any issues with my vehicles since switching over.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Matt the car guy: space

My go to oil

Never lets me down and keeps my car running like a top. Black stone lab reports always come back good viscosity turns out little thin after 5500 miles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Anthony: space

AMSOIL products

My 1998 Chevy 4.3 truck has 350000km right from new I have used AMSOIL products bumper to bumper and never touched the motor or transmission. Even in cold weather at -25 Celsius not plug in it will start every time.I have been using AMSOIL products for 35 years and I am not about to stop.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

I will definitely buy this product again!!

I use the 5w30 signature oil in my 2012 Chevy Sonic that I use for business. I use the car to deliver auto parts as an independent contractor. It presently has 339,000 miles on it and going strong!!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Whododgeit: space

I would buy thia product again

It good oil and keep engine running for life

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SammyD: space

Great oil!

Amsoil makes one of the best if not THE best oil out there. You get great longevity out of their products, especially the signature series. I've been using that oil for a few years now and I noticed a slight increase in mileage and engine smoothness in my Accord. I just bought a new car and when the free oil changes(2 or 3) are up I'll be using Amsoil for sure.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Frosty mike: space

Only oil I will buy

Amsoil is the schit hands down the best in synthetics

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Subaru impreza: space

Amsoil synthetic

I have uses Amsoil for 8 years now. I go 20,000 between changes and 10,000 for a filter change in between. Never burn oil and I get constant steady power and great milage. Im convinced it the best oil on tge market...period!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PapaDukes: space

Good stuff

I have been using Amsoil products for over 25 years, and now put it in my kids cars. Living in a place where dirt and heat are common place Amsoil has preformed above and beyond any other products I have ever used. With the cost of new vehicles I cannot think of a better product to extend the life of a vehicle. Goods stuff.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Adalarm90: space

Only oil I can review at the time

Great oil, I normally use Mobil 1 and am trying Amsoil oils. I believe they are worth it. I still think they are expensive but they seem to last. No difference in performcance(like more MPGS) but I have noticed the signature series oil lasts more time without changing color like old/worn out oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by FMF Doc: space

Best performance oil on the market

Used in my SC, 2014 Ford Raptor. Longer oil change interval if required. Dependability during the most demanding conditions.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Curt: space

Great product love Amsoil products!!!

So far oil seems to be holding up well,never had any issues with Amsoil products.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

I will alway use this and other Amsoil product.

Amsoil allows more time between oil changes with a filter replacement at 5000 miles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by James: space

I would buy this product again.

Switched to using Amsoil and noticed a difference immediately at how quiet the engine sounded. I also noticed a bump in fuel mileage.

I currently have a 2007 Mazda 3s with 115,000 miles on it and used Amsoil since it was new and it has never had any oil related problems or leaks.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Acdelco: space

Good product

Use this in 2 cars & 1 truck have over 105000 miles on Pt Cruiser, engine is quiet, & doesn't burn oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Toyotaholic: space

I highly recommend this product.

2006 Toyota Corolla. 250k miles with only 10 oil changes. The engine still going without any issues. Now I use it on my 07 Fj cruiser and my 15 Toyota Corolla.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeffrey: space

Great results!

I have used Sig series 5W30 for the last 100000 miles on my 2003 Lexus es.Just had valve cover gaskets replaced.Tech said engine looked like new inside with valve covers removed..

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fernando: space

I will buy this product again

My vehicle runs great

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Manny: space

AMSOIL 0w20 and AMSOIL 5W20 synthetic motor oils.

I have been using AMSOIL Synthetic oils in my vehicles for over 10 years. Two Saturns (a 2000 SL2 & a 2002 SC2), Two Hyundai Elantras (2014 & 2017), and a GM Sonic (2015) . I have never had an oil related problem with any of the engines. There was significant affect on the LACK or wear on all of the engines I would recommend AMSOIL them to anyone who purchases a new car, or a used car with not many miles on it.

P.S. I have been buying NEW automobiles since 1970. I switched to AMSOIL synthetic motor oils in 2004, and have never used anything else in my automobiles (and my lawn mowers).

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

Have used Amsoil products for over 30 Years.

Used Amsoil OW-20 oil in the last two Hondas I've owned and currently in my 2017 Honda Civic turbo. Aside from the fact that Honda makes a very durable Vehicle the use of Amsoil OW-20 has without question lengthened the lifespan of my vehicles. I put close to 200,000 miles on the previous Honda's I owned and expect with normal maintenance to do the same or even better with my current Honda.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Barry: space

I have been using this product for many years

Wouldn't think about any other product for my 2007 Silverado that has 223,000 miles on it. I started using it back when i purchased my first new 2000 Silverado and have used it ever since.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Timmy: space

No plans to change

I have been running Signature Series Synthetic Motor Oil in my 2010 FJ Cruiser (4.0 V-6) since it was new. The vehicle now has 146,000 miles on it. I drive 140 miles per day for work, towing a small boat for part of the commute. I consider the use of my vehicle pretty strenuous considering 1000 plus feet of elevation change, temps from 0 degrees to 105, all on horrible highways from the desert to the mountains, including a little off road crawling. I grew up around garages and race cars and do my own maintenance / oil changes and am always impressed with how good the oil looks when I drain it, even after max mileage intervals. I have had zero mechanical issues and get the same fuel mileage as when the truck was new. The one time I had a shop change my oil due to time constraints and other service, the mechanic commented the used oil looked and felt fantastic still, at 12,000 miles.
I use Amsoil products everywhere I can......tranny, differentials, transfer case. I'm sold on Signature Series Oil for all of my rigs, and sold on the people and service I get from Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

I would buy this again

Awesome oil. Makes my Cecile run smoother and quieter. I love Amsoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by H20EXPLORER: space

I WOULD DEFINETLY BY THIS PRODUCT AGAIN

In my 19 year old truck with 257000 miles, the performance improvement is noticeable.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JD: space

Really wonderful oil

Started using the Signature Oils last year. I can tell the difference from regular synthetic oil. In the long run it's probably less expensive to use the Signature because of more then double the change interval.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Good stuff

You can't beat Amsoil, and at the price when you become a preferred member, the price is as good or better than most other oils.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Josh: space

One of the best I have ever used

Amsoil products are constantly the highest quality and the best protection for all my vehicles. It has revived and made my daily driver (over 20 year old vehicle) run like a top. It is the prefect addition to any vehicle that you want to get long use out of, and regardless of the environment have the best protection for your engine.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pepe: space

Started using it......will never stop!!! Whatever I drive!!!

Always heard about it in the past, but never tried it. Finally tried it and will always use it!!!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gutsi: space

Best Oil

I've been using Amsoil in all my cars (6) for over 10 years. My 07 Honda Fit just turned 400k miles and is going strong, along with all my other cars running Amsoil. And I save money by only having to change the oil every 15k miles. Excellent product that actually saves me money in the long run.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mk: space

Love this stuff!!!

I drive 150 miles daily and amsoil helps my engine run smooth and cool.. Even when I'm due to change it feels like oil not syrup... Great price for a great product.. would buy amsoil again and again.. Thanks amsoil

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tony: space

5/50 Signature OIl

Have previously trid various oils in my 2012 Boss 302 & Amsoil 5/50 is been my choice since it came out .Great Stuff''''''

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ken: space

Signature 5-30 and 5-20 and 100:1 2 cycle oil

I installed 5-30 Sig in my Tahoe last May. Through this May I completed 10,000 miles including through a winter here in Northern Michigan. The shop I use was touting another oil and warned me that no oil could be used all winter in multiple cold or very cold start conditions and last through the whole winter. Well, I had the oil tested after a year and even in this harsh environment, the oil still had 3,000 to 5,000 miles of life left. Kudos to the product. Yes the Tahoe does use some oil--maybe 3 quarts total over that period, but it did amaze me that the oil held up and was still good after a year. Fuel economy on a road trip to Rochester, MN with a change of trans fluid to Amsoil synthetic showed an increase in mileage from about 19 to a solid 21-22 MPG. Fluids are the only change and this vehicle is otherwise a gas hog.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Short Circuit: space

Use it believe in it

I have used this product for over 20 years. I have actually torn down an engine (oil pump shaft broke) that I used this oil in close to its whole life and the internals of the engine were remarkable. They showed very little wear and tear and none of the typical deposits you would see in an engine with 135,000 miles on. I know there is a lot of churn about who's best and so on but speaking for this oil it's worth every penny. Your buying peace of mind.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jerry: space

Yes

Good product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pgf1: space

I will be buying this product again

I have recently changed to this after considerable research,

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lee: space

I am not going to stop using this product

Since I start using Amsoil signature zero 20 100% synthetic oil on my truck start ups Are much quicker and Engine runs more smoother and more power.My gas mileage has improved significantly

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

Great product

Start using AMS oil 10 years ago. After 250,000 miles car is still running great.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Theron: space

Reputation

Lots of confidence

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don the mechanic: space

I would buy this product again

This Product saves money. It gives you great protection for your engine over a longer period of time, so you do not have to change it as often.When used with the Amsoil Ea Oil filter, it does even a better job. So in the long run it is more economical to use.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ED: space

Long intervals

As I have gotten older I like how I now only have to change the oil only once a year. I take care of 6 cars (mine and my kids) so this really helps me do other things besides changing oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

I would buy this again

Long life offered

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lambshark: space

The only oil I use.

Been using Amsoil for years with awesome success. I always use their oil filters as well.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Harvdog: space

We are extremely happy with Amsoil

We love the oil , filters and grease. Currently we have just over 411,000 miles on our 2004 Honda Element. Thanks for providing such a high quality lubricant.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tito: space

Excellent Product

I use this product in my vehicles that specify 0W-20. Since switching, the engines are much quieter and seem to run cooler.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Still going strong

I've been using Amsoil Signature Series in my 2010 Toyota truck exclusively. Eight years later and 200,000 km later it still runs like new. I wouldn't think of using anything else.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Satisfied: space

Cured Generator Oil Consumption

Great for my new air-cooled Generac 11kW automatic backup generator. It was consuming another well-known brand of synthetic 5w-30EP oil at an unacceptably excessive rate. After researching the various oil properties and what others with air-cooled generators down in hurricane country use, I decided to try Amsoil 5w-50. After switching my oil consumption completely stopped. I use it or Amsoil 0W-40 in all my small engines now.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David: space

I would buy this product again

Amazing product so good im happy i made the right Choice

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PJ: space

I would buy this again

I started using this about a year ago and now have in my two motorcycles, my fianc├ęs bike and a couple of friends.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CJ: space

I will purchase again

The Amsoil Products not only protect my vehichle to the highest standards,they save me time and money.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Great Product and Service

We have used Amsoil products in all of our vehicles for the past 8 years. The engine in our 2010 Equinox is still running strong with 155,000 Amsoil miles. We have used the Signature Series 5W-30 for the past 75 of so and even with the high mileage we lose almost no oil between changes. We do change at about 12K to 15K though due to the heat in the summers of central Virginia.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gary B: space

I would buy this over and over again.

I use this in all for vehicles I own for the last 20 years. My V10 Motor Home, my Hemi SUV, my V-6 convertible beach cruiser and my classic convertible street rod. Extremely versatile and has never let me down.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Anson: space

Top oil, over every other on the market.

I've been using amsoil 35 years, I believe it's what gave me 450000 miles on on a 77 Porsche. Today I used it in my 18 Kia soul turbo and 16 Kia turbo koup, read the specs it's the best oil for any application.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BATMAN: space

OIL

This is the only oil I use in all of my vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

Amsoil is good stuff!

My engine has 245,000 miles on it, (second engine in the car) and I have used Amsoil for about 2 years. I recently had an oil analysis by Blackstone Labs, and they told me that the wear I had represented about 5,800 miles, but I had actually 22,600 miles on that oil change!! I could have run until 25,000 miles, so next time I will.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TDR: space

Only oil period.

Use this in my 2017 Kia 3.3 and like that I save money with my longer oil change interval.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

My F150 and Highlander both run with Amsoil Signature

My vehicles never run better. I like the convenience of changing my oil once a year.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

Best oil

I have been in the automotive industry for 45 years and have seen all kinds of oil and lubricants. Many claim amazing things. My personal experience with Amsoil has been long term. First my race bike. Nothing compared to the performance of Amsoil. Runs cooler, lasts longer, overall good results. My truck now has 343000 miles. Still does not use any oil. My Harley picked up 3 miles/gallon and runs cooler.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tommy: space

Gets the job done

Great product

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tone Capone: space

Love Amsoil

Amsoil is the only well we use in our cars. Are even got my family and some of my friends to switch

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Loop: space

Long time user

Great oil

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

Great Stuff. Highly Recommended. Awesome performance

Here in Edmonton, Alberta. We've got crazy And confusing weather. The cold gets up to -50 So this Oil does Absolutely great performance. You've gotta have this in coldest weather.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Corvette Mike: space

Will continue to be a customer

Just recently changed my C6 Corvette to Amsoil. Looking for cooler operating temps and the reduction of lifter noise on cold starts. Took a 200 mile trip ran about the same temps as my previous synthetic oil. Engine seems a little quieter with cold starts. The cruising season is just getting started her in Ohio. The true test will be when I track the car at some of our clubs autocross races and high speed events. Two other friends have witnessed improvements with this product and switched based on their recommendations. They both race frequently and push their Vettes to the limit without any issues.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by juicey j: space

delivery service

seems to be working good. I put a 100,000 miles a year on. does not keep engine as clean as redline. lots of varnish from amsoil at the 100,000 mile mark. redline at a 100,000 looks just like knew inside the engine.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry: space

Yes

I started using this oil many years ago. When first bought it I used your oil filter and oil I put in my Ford 150 pickup truck 2002. I left in my truck for 6 weeks and drained the OIl and put in new filter and oil this cleaned the inside of my motor now the oil stays very clean. I now have over 363,000 miles on my truck still running strong

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by windom: space

again and again

Amsoil oil is amazing. You are the best.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nosocs: space

Shmoov...

I use in a 1999 Acura CL/3.0 coupe...starteed @ 40,000, and have used for last 180,000...car has 220,000, and runs as shmooov as any vehicle out there....@ 185,000, I changed the transmission fluid, using AMSOIL transmission fluid...aGain.....shmoove shifting....Best product for any vehicle!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jake: space

I have only ever used this in my truck.

Best synthetic on the market. It's the only thing I use in my truck.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Serge: space

Great oil as always.

As always, AMSOil didn't disappoint. Ordered this for my mom's 2016 Honda Accord.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jose the big burrito: space

It's amazing oil

Super impressed with all The Amsoil products. Extebdes oil change intervals makes it a no-brainer.
vehicle
Vehicle runs so much smoother, better gas mileage, it's a win-win

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tony: space

I would buy again

Use for my car

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mel: space

I run this oil in all engines I own..

I always say that if Amsoil don't know how to make Synthetic Oil NO ONE does..
Because they have been the first since 1972..

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by rdj519: space

1999 z71 truck

300000 miles with once a year oil change. Amsol is the best

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ...: space

...

Great products

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rusty: space

Very good product!

I use Amsoil in everything machine I own. That Amounts to one diesel pickup to three gas pic up and two mustangs one being a 2011 Shelby GT500

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dennis Oldblood: space

Best product ever for use in your car

Amsoil protect my crankshaft when my oil pump failed and I get better gas milage, epa rating for my car is 35 mpg and I repeatedly hit 40 mpg.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Good Stuff...period

2010 Toyota sequioa w/ 200k on the clock.
Doubled oil change interval to 10k, doesn't use a drop between changes. Frequently idle and tow in hot Mississippi weather. Noticeably quieter valve operation over other top shelf synthetics. I just did a 200k service and noticed there is zero sludge in the engine. It was as sparkly as a transmission.
I expect 300-400k out of this engine but it is a Toyota not a Ford!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Los: space

Great Oil

The best oil I've ever used.! Hands down!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Poncho pete: space

5w20 signature oil

2013 Kia Rio o my has a 3.5 qt capacity. Best oil I've seen for this scenario

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Love Amsoil

Only Oil I will every use on my high performance cars

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chance: space

I would definitely buy again.

Used for engines and trans. I researched oil products IE: Royal Purple, Mobil 1, and Amsoil. Amsoil won.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Yes

On thanks

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

Subaru calls for this Wt oil

My new Outback calls for 0-20 oil. This is a difficult thing to believe in considering I am old sckool and would rather have a heavier oil in the motor.
So if I am going to put thin oil in this new car, then I want the best I can get.
I been using AmsOil products for a while now and have no complaints .

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ryan: space

My new favorite oil!

My 302 race engine loves it! My old oil would barely last 1,500 miles but signature series is still golden after 5k! Thinging about swithing everything i have to it and see how a stock engine does up to 15,000!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hawk: space

The only oil I will use.

The best oil I have ever used and I tell everyone I know.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dan the man: space

That's the one for my car

For the long mileage & city

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

This oil is some awesome stuff.

Unlike other oils I have tried in the past this stuff seems to work very well in my 5.3 liter vortex, she runs much quieter and cooler then before, I was a big a mobile 1 user before trying the amsoil and I've been using it ever since.

If you rilly listen to you engine it will tell you what it likes, while that may sound crazy to some people to me this stuff is definitely approved by my motor lol. It is good stuff a bit pricey but you will get what you pay for with this product there's no dought kn my mind.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

Good for another year

I bought SS 5W-30 and a 15K filter for less than 4 oil changes

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by B: space

Simply the best stuff ever

Amazing products. Will not run anything else in my vehicles, atvs, snowmobiles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DonV: space

BillV

When changing oil in a turbo engine the new formula Amsoil Signature series is a no-brainer!!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by 392 SRT: space

Best EVER!! BAR NONE

I was introduced to AMSOIL in 1989 and ever since then it's all I use. I've had dealerships and Auto parts houses try to sell me Royal Purple and Penzoil and Mobil One and I stop them before they even get going good. And I tell them, "Sorry that you like trashy oil in your prized possessions but as for me I only run the best, and that's Amsoil. It's been around since the 60's and it's never failed. So, why not use something that stands the test of TIME!!? That's why I use it, I "Know" it won't fail."

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Oldfogey: space

using amsoil for over 20 years.

Run it in every vehicle I own and my kids. Best product on the market

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larzman: space

AMS oil signature 10W-30

Product is terrific. Improved engine idling & gas mileage. Good engine wear too! Shooting for 300k & beyond!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by mike: space

So far so good

Time in between changes

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by H.d. Hood Jr.: space

Great stuff !!!!!! I only use amsoil

Works great lasts a long time !!!! Over priced though

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ironrail: space

I won't use any other oil

We have a 2016 Honda Pilot and a 2014 Jeep Gtand Cherokee. The Pilot gets 28 mpg and the Jeep gets 24. I truelly believe it's because of AMSOIL. When we picked up my wife's Pilot from the dealer I told her that within 30 days i'll have it running so smooth that she won't know that it's running. She gave me the bonehead look. Long story short, both vehicles run as smooth as silk and the mpg's are higher since AMSOIL. Not long ago i got into her truck and i didn't know it was running. I asked her if she was going to start the truck before we leave for our trip. That's basically how the story goes for all of our cars; lawn equipment and anything that uses oil. It's the best you can get.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kyle: space

Yes

My vehicles definitely feels it has more performance.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Amsoil 5w30

Use in my Toyota Tundra since new 2006! 270,000 mi. Great protection, runs well & very consistent!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Andy: space

Excellant oil.

Use it in my 2000 Honda civic SI with 220000 miles on it. Still runs like a champ.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

Mmmmm gooo

It's the best

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shawn and Patricia: space

Great product

Best synthetic oil in the world it's the best and only oil we use.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dale: space

Great Product

This product is awesome, since I do not put many miles on my vehicles, with getting a Demo from work, it is nice to only have to change the oil in all of my vehicles once a year and know that it comes out as clean as new when I drain it! Superior product and highly recommend!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Coulee: space

Signature Series 5w-40

Great oil, change it once a year. Been buying Amsoil since 1980, first as just a customer and then as preferred. I use only Amsoil oils, gear oils in tractor, small engines.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Clint: space

5w-30

Awesome oil! After changing the oil in my wife traverse to Amsoil everything has been running smoother. The only down side is sometimes my wife will start the car waiting for me to leave the house, I'll get in the car and try and crank it again because I cant hear the engine running it's so quiet now.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

I've been with AMSOIL since 1988

I use it in my 2 wheel drive 4Runner and have 273,000 miles on the car all with AMSOIL.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by George: space

Awesome oil

Amazing oil for the Toyota FJ. FJ ran better and oil at change interval didn't seem as dark.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nathan: space

I buy this product every year

Have been using in my last 3 vehicles

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Imy: space

Even better than I thought

Works as designed; and extends oil changes intervals

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Imy: space

Worked as designed

Gain in mpg and more miles/time before maintenance intervals

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Maiden Youesa: space

Get the quality your $$$ deserves Amsoil

I just changed the oil in both my rides and loves the quiet smooth sound when running my signature series.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kevhead: space

I will not consider any other synthetic than the BEST.

I started using amzoil products before being called amsoil. I use the signature series oil and Eo and Eat filters. I change my oil once/yr. And I literally do not burn any oil in that yr. With my 00' tundra V8 using amsoil. My 02

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by workamper: space

Run with this oil for 30 plus years

Nothing on the market that beats it

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

I will buy this product again and again

This is the only kind of oil that I will use in my vehicles

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Drew: space

I would buy this product and use it in every car I own

I own 2003 s2000 that I recently rebuilt the cylinder head on. Prior to the rebuild the car was turboed for a decent amount of time. The car currently sits around 112k miles at the moment after the rebuild. The car has been running Amsoil signature series for most of its life. When I inspected the camshaft, cylinder walls, etc during the rebuild the car showed absolutely no sign of wear anywhere and this is after being turboed and ran hard for a decent amount of time. I moved back to 10w30 signature series after the rebuild but still great stuff.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shimmy: space

ONLY Amsoil!

I've taken several engines apart but only engines that have run Amsoil and they only need coolant system work. Conventional oil precipitates out garbage and sludges up engines resulting in CLOGGED oil passages. If your switching from conventional, get the best protection you can get that has tons of positive history. Do your homework/research to understand ALL the costs involved. You will determine Amsoil is the best switch you can make for your vehicles.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Railrunner: space

A Trusted Product

I have been using Amsoil products in my vehicles and motorized equipment for many years and relay on its quality. As a "gearhead", I know how important using quality motor oils and greases are to machinery. They are my first choice for lubrication fluids.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by K-Mac: space

Only the BEST Oils for my vehicles

I only use American AMSOIL in all my vehicles. For this one, I use it in my 2005 Honda Fit 1500cc..

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by K-Mac: space

Only American

I only use American AMSOIL in all my vehicles. For this one, I use it in my 2016 Nissan Caravan NV350.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Great product

I run Amsoil oil and filter in my Yukon Denali 15,000 miles between changes. Just reset the change oil message at 7500. Doing this for years with several GMC Yukon's. At 250,000 plus miles no oil burn at all. Very impressed with not having to go under the car twice as much.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ricky: space

Best oil you can buy

Awesome cold start protection, and anti-wear lube, simply the best

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mustang Larry: space

Buy again

So far all is good.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mustang Larry: space

I will buy this product again.

Why is it when I change my oil does my mileage drop by 2mpg. For the first 400 miles 1 1/2 to 2 mpg less then it creeps back up.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ron the Tyrolian: space

Great products

I have relied on Amsoil products for years to protect my engines and it has done exactly that.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SamLac: space

Why change?

I started using AMSoil in the mid 80s while in Alaska. Cold extreme make lubrication very critical. At minus 40, most petroleum lubes won't even drip off the dip stick and when started cold you can hear every bearing in the engine as there is little or no lube flowing. No so with my AMSoil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Not worth it.

I've been running 5W30 Signature Series in my 2002 Tacoma since putting it on the road in 2016 with 116,000 miles on the engine. I have since had Oil Analyzers (Amsoil, Inc.) test three samples from the truck so far, and have yet to have the oil last more than 13K miles before being told it's time for it to be changed. So much for the 25,000 miles/1 year claim...

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Grizz: space

This stuff is THE BEST!

I have 2 vehicles that have had this oil in them (changed every 15,000mi) since I bought them new. They both have mileage approaching 250,000, and they run like BRAND NEW. My newest vehicle is a 2017 Subie Forester Turbo so it gets Signature 5W-30 every 10,000 miles, and I'm sure it will see 200k and beyond.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GF1563: space

Great product, well worth the money

Love the extended oil change intervals and my fuel mileage increased slightly, which leads me to believe it must be lubricating everything very well.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pat: space

This is the only oil I will put in my engine

It's great year round hot or cold

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don: space

Will Always use Amsoil

Several years ago I switched to Amsoil in my GMC Yukon. I was very impressed with what the Signature Series 5w-30 Motor Oil looked like after the first oil change. With all the oils and products that Amsoil offers, I have since switched everything I own over to Amsoil. Even my lawnmowers.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by dhgguy: space

I can recommend this product

Used in my F150 exclusively. Excellent oil & filter.
Would not use anything else.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ronv: space

Great product!

I have used Amsoil for 30 years and wouldn't think of using any other oil.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mister nice: space

Yes

Love that you don't have to change oil as offer as regular oil. Is is a little high. Hey but you get what you pay for.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Henry: space

Good stuff

I use Amsoil exclusively

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jblev77: space

The best synthetic oil

#1 for 3.5L ecoboost

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

This is the only oil I run in my Silverado Cobalt, and GTO

I like being about to change oil at any time between 5-10k and not have to worry about weather or not the oil is doing it job !!!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by RebelnOhio: space

Amsoil always works!

I have been using Amsoil for over 15 years and have never had a problem, it's a well proven product that I trust in all of my cars for work and for pleasure. I will will continue to use Amsoil and benefit from it's proven results! I own a Livery/Limo Service and I drive about 40-50K miles a year on various cars and I believe Amsoil is the best Oil for all of my vehicles. With the long 15k Mile change intervals it is a money saving gem and your engine benefits 100%. I recommend there products highly!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KENT: space

SIGNATURE SERIES SYNTHETIC MOTOR OIL

I've used this brand and series in my Dodge Ram 4.7 v-8 since I acquired it at 90,000 miles. I've driven another 70,000 miles since and the engine is stronger than it's ever been! I expect to drive this truck until at least 300K miles because of the Amsoil Signagture Series Synthetic brand motor oil. I won't use anything else!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KK: space

Great Stuff

I use Amsoil on my SUV and love it!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Great Oil

I use ansoil on all of my trucks, motorcycles, ATVs. This oil I use on 2017 Hemi 2500. It cannot be beat.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by G: space

I love it

Instant satisfaction, after the first start up i could already hear and feel things running smoother.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Redtundra8: space

Great Oil

This is the best oil money can buy in my opinion. I use this in all my vehicles and have for the last 12 years. Love only having to change the oil once a year. I highly recommend this product.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pat: space

Best line out there

Bestboil products on the market by far. I run it in all my vehicles

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Billy G: space

No issues

I have used Amsoil products for many years in all of my vehicles and small engines. I have never had an issues. I recommend Amsoil even though it is not the cheapest but the delivery is very prompt.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wingsprnt: space

Does what it promises.

Not sure about the oW-20 weight here in Florida, but that is what Honda calls for.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Greg: space

Good product

Always met my expectations.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MatsB: space

Excellent products.

Using Amsoil in all of my family's cars. Using Signature series in cars that drive over 12,000 miles per year, and XL series in cars that drive less than 12,000 miles.
Sent a 27,000 mile sample for testing to a independent lab, and they recommended 30,000 miles next time based on the excellent results.
Also using Amsoil in all lawn equipment and for a standby generator.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert Long: space

I would definitely buy this product again

Great product gives better fuel mileage and cleaner oil after changes

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

The Best There Is

I've been using Amsoil since the 1980s in everything with an engine. And have bragged about it's benefits to anyone who'd listen.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

Increase mileage

I get better mileage with Amsoil
I run my 4x4 very hard and Amsoil is doing a great job of keeping it running strong

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Elvis of Aragorn: space

Great results

My 2004 Silverado (5.3L V8) has had a steady diet of Amsoil since its second oil change. I have stuck to the 10,000 mile interval, using Amsoil Ea filters & Signature Oil. She's about to roll over the 200,000 mile mark, and I have had no engine issues. I use Amsoil Signature Synthetic Oil in all of my vehicles, and plan on keeping it that way.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pinto: space

great in the city

I'm city driving in a 4x4 Ford van and after my last oil change the oil was still in great condition after 15,000 miles. just used the cleaning solution so lets see how this improves engine longevity. really happy with all th products I have received.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by S2kadi: space

The Only Oil I Trust

I use Amsoil Signature Series in both of my cars that are susceptible to burning oil. The 10W30 goes into my Honda S2000 and works great! Amsoil is the only oil I use in my motors and gearboxes, after trying out several different brands, I have found their quality to be of the best.

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by pro4100: space

Top Notch

I use it in my Subie Forester and my silverado 1500. no problems ever!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Quick charge water: space

Best stuff on the market

Yeah like to 25,000 my old changed

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Beast: space

10K Oil Changes

I will never use conventional again. 10K mile Oil changes, or once a year. You cant beat the quality and value of this product. No dealer or mechanic can ever persuade my to change every 3k miles again!. Get you some!

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ScoobyVTEC: space

Improved MPG

Bought Amsoil for all of my cars so I wouldn't have to change the oil so frequently and for the protection it gives all of the internal moving parts. I've noticed an increase in MPG and smoothness when I drive.
2017 Civic Type R
2012 Pilot Touring AWD
1998 Civic EX

Item Reviewed: Signature Series Motor Oils
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kw: space

Love this stuff.

Been using amsoil for 10 yrs would never use aNY other prout ever. Noticeable mileage increase and smoothness. I run the signature series 5/20. Amazing oil that's all I could say.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jay: space

Excellent Products

I've used other upper end brands (Royal Purple, Mobil One, Pennzoil) and their performance can't compete with Amsoil. I'v been using Amsoil products exclusively for past 10 years and I am extremely satisfied with their products and their customer service. They are both excellent. Call center employees very knowledgeable about their products. I would definitely recommend their products above all others. Their commitment to quality and performance is second to none.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tommy: space

Great product

I've used this for 10 years since I bought my F150 5.4 with 50k miles.
This year I was returning from vacation and I noticed the truck seemed low on power. I brought it to my mechanic and he found 1 bearing gone on a roller rocker. Rocker shaft destroyed. 3 collapsed lifters and a broken in half cam chain tensioner. His only explanation as to why the engine still ran was the oil. He said Amsoil is Motor Magic.
We have a new engine now topped off with all Amsoil products!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Matt: space

Amazing period.

Amsoil is the only thing I will put in my Vehicles. Why waste Money on oil that could possibly reduce the lifetime of your engine? Spend the few bucks more and save money in the long term.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scooby: space

I'll buy more and more

I use Amsoil in all that I own from vehicles, lawn equipment, generator and my motorcycle. Everything that I put it in runs great and the oil runs/ages very clean vs others I've tried. I use oem filters but with Amsoil the oil just doesn't seem to wear out like others if that makes any sense.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KMitchell: space

Love it

I have used this oil for years. In my 06 Durango. It has over 230,000 miles and is still going.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bob: space

Customer for years

I use Amsoil for all my vehicles for years and continue to trust all Amsoil products

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don: space

Best Product

I've used Amsoil products for years. If you understand the product technical reports, You will use this oil and filter combination. Best for wear, cleaning and longevity I've ever found. Lubricity is second to none.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bosman: space

Return on investment

Use in both personal and now work vehicle. Can't go wrong with extended drain intervals, pays off fast.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Titanium Tim: space

Best synthetic oil.

I have been using Amsoil products for over 30 years I believe they are the best

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Az Wild Burro: space

Excellent Quality

I use Amsoil on all engines large and small. Top in its Class

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe123456: space

Great stuff

I have been using this in my Taurus since I purchased it (and Amsoil products in general for many cars over many years). The stuff performs great. Comes out feeling as slippery as it did when it went in (unlike conventional oils).

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Clipp: space

Best there is

I always do all fluid changes in our Jeeps, changed everything over to amsoil and have never encountered any problems.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gimpy: space

39+ year relationship

I have used Amsoil engine oil, gear lube, metal protection spray and foam air filters as well as oil filters for almost 4 decades thanks to a former neighbor who worked in the aerospace industry. He was my go to dealer.
The signature series oil that I am using now has served me and my vehicle well and my vehicle oil sensor has boosted the remaining oil life expectancy quite a bit Vs. the factory oil mileage to percent of oil life remaining.
The color, transparency and odor is my visual test process when I change my oil to compare Amsoil to other oils.
I am a firm believer in "you get what you pay for" and Amsoil is worth every cent for long life and peace of mind in your vehicles maintenance.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by icesysman: space

Performs as Advertized

I'm currently using your 5W-20 synthetic motor oil in a 2008 Toyota FJ Cruiser. Startability in sub-zero weather has been excellent.I've also noticed an increase in gas mileage, which is a definite plus. The engine runs quieter and smoother than it did with conventional motor oils. I will continue using Amsoil products until I'm no longer able!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dienliv: space

2017 Ford Explorer Base

Bought a brand new 2017 Ford Explorer (NA 3.5L). After a couple thousand miles, I changed the oil over to Amsoil Signature Series, using Amsoil's filter as well. I've been changing the oil based on the in-dash oil life counter which gets to right about 10,000 miles for servicing. All has been working just fine so far at 25k.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nordy: space

Love it

Love the protection and convenience of 1 oil change a year.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Red: space

Best ever

A true company that stands behind their products and has the best costomer assistants ever.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LD423: space

Simply the best

I have multiple vehicles and use it in all of them, worries end when using Amsoil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ice man: space

I will buy again

Using my personal vehicle. Stands up to hot and cold temperatures well. I like longer intervals of oil changes

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shane.B: space

Been using in everything I own for 5 years

I use Amsoil in everything I own that has an engine( mower, snowblower, generator, compressor, truck, and minivan). What sold me was during harsh cold winter months (-25 to -35 Celsius) my truck kinda turned over slow for the first turn of the engine before firing right up using conventional oil. Thought what heck let's see how it works with synthetic oil during the winter..... long story short I use it all year round and won't ever switch back.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Legs2: space

"Good Stuff"

Have been using Amsoil for the past four years and I'm very satisfied. My cars even seem to sound better. Amsoil gives me peace of mind knowing my cars are functioning better.
It's worth the extra money just because it prolongs the life of the engines

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pops: space

I use this product in my vehicles and will continue to do so

Started using Amsoil in 2004 but was skeptical about the advertising claims. I would change my oil and send off a sample to have it analyzed. The results always came back showing that the oil was still good. I use the Amsoil EA oil filters also an have complete confidence in my engine lubrication. I use Amsoil products in all of my vehicles transmissions, differentials, etc.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Legs2: space

"Good Stuff"

Have been using Amsoil for the past four years and I'm very satisfied. My cars even seem to sound better. Amsoil gives me peace of mind knowing my cars are functioning better.
It's worth the extra money just because it prolongs the life of the engines

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sam the man: space

I will always buy this product over and over

This amsoil since I use it the car run as New and is millag. On gas saved me money it's a good oil for

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Armando: space

Quality Product!

I've used this product from the time we bought our Honda Pilot, used at 69,000 miles. The SUV now has 238,000, with maintenance and Amsoil, we plan on seeing the odometer turn half a million miles. I truly believe in this product. For the cost, it well benefits buying the Signature series, not only is it quality oil, we get more miles per gallon, we also get peace of mind knowing our engine is free from sludge and getting properties that keeps the engine running at its best.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ford: space

I will buy this product again and again!

Best oil out there. Very easy choice.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Majwood: space

Great buy

This oil is long lasting and keeps on slipping!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by slim: space

Great Oil

very good product and knowledgeable people about their product.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bud: space

Yes

For maintenance oil changes.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

Great Product

I have been using Amsoil oil and filters for at least 10 years and have never had a problem that was oil related. This oil has been used in my 2013 Explorer and now in my 2017 Explorer. Recommend it to all who will listen and I am not a dealer.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by RebelnOhio: space

The Best Synthetic Oil you Can Buy!

I have been using Amsoil for over 10 yrs. now and I have never had a problem with anything. For my money, this is the best Synthetic Oil you can buy and got he longest distance between oil changes! I wouldn't use anything else in any of my Lincoln Town Car's, MKS's or Cadillac's. Once you do the research on Amsoil and the benefits your car will receive, I think you will be very satisfied as I have been for yrs.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jake: space

You'd be a fool if you bought something else than AMSOIL,!

1-once-a-year oil changes, and the BEST-protection for your investment,!
PERIOD! need I have to explain anything else,..?

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris Natole: space

I will buy this product again.

For vehicle engine longevity I don't mess with conventional motor oil any longer. Why even bother risking the heart of your vehicle.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dmonacols3: space

Best oil on the market.

I use Amsoil in every vehicle I own. With the extended drain intervals and excellent protection it is the lowest cost as well as the best oil you can use.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve: space

The only oil I use

I can definitely tell when I'm not using Amsoil. I can feel it in the engine.
When I do use it, the motor is smooth as glass at the stop lights, and I know
over time, the wear and tear on a motor is minimal with it's continued habitual use.

I use it on all three of my vehicles. I've used other full synthetics in the past, but I can
tell the difference. AMSoil is superior. I feel it's worth the extra money to me.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by V8'er: space

Must Work - No Problems at 120K Miles

No problems are always a good thing. I've used this for the last 80K miles and have experienced no concerns. If a problem occurs, I will be concerned about the cause, until then I like this oil.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim Mc: space

I use ams oil in all my vehicles and daughters too

I've been using Amsoil for 20yrs. I believe it reduces wear and increases the longevity of my vehicles

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Durability and Protection

Excellent product, if u love your vehicles and want them to last a long long time, but Amsoil for them!! They deserve it.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mrdoow: space

I bought enough for 5 years of oil changes on our Mazda CX-5

When my free dealer oil changes ran out I switched to Amsoil on our Mazda CX-5. Average mpg on dealer oil was 22 to 24 according to the car's computer. On our first trip after changing to Amsoil, the average mpg readout went to 28-29. We had a couple of 32 mpg's on this trip also. AND BONUS, I only change oil once a year now. Great product.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Stan the Man: space

Use Amsoil products in all my vehicles

Use mainly in class 8 trucks, expensive but good product I believe

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by peterj59efi: space

Signature 5 20

once a year oil changes whats better than that

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JW: space

I will only use Amsoil!

I use only Amsoil in every engine I own. My F150, the wife's Lincoln, the Harley, The Boss Hoss, My Shelby, My vintage Ford tractor (Z-Rod)The Toro zero turn My 1981 Briggs and Straton edger and anything else that stops by my home.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lou: space

Peace of mind - extended drain intervals

As a do it yourself auto maintenance gear head, I value the peace of mind knowing I am using the best oil available for extended drain intervals.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve S.: space

The only oil for my 2016 F-150 5.0L & 2005 Acura MDX

Switched to 5W-20 Amsoil Signature Series at my first oil change in my new truck & immediately noticed how quiet the engine runs along with an increase in fuel economy. Being a true full synthetic, it is the only oil I trust for the service demands of my truck & SUV. Thanks for a great product & service!

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dahanny: space

Best oil for my Hemi

This oil in my truck Hemi 5.7 2017 run perfect !

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Moe: space

Will always buy this product

Best oil on market use it in all my vehicles for years no issues

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

I've been using Amsoil since it hit the market

Amsoil products are everything Amsoil say they are. They are simply the best and most effective products of their types, regardless whether it's oil, additives, etc...
While conventional oils can be good and do what you need it to, they just don't compare to Amsoil synthetic lubricants. They can't. That's the whole reason synthetic lubricants were developed in the first place.
When turbine engines were in development, conventional lubricants would completely fail. Engines would literally come apart...catastrophic failure.
I've run Amsoil in every car I've had. I change it once a year; reduced waste, superior protection and longevity, lower cost.
It's a no-brainer.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dan: space

Good stuff

I drive my cars like I stole them. Pull a fifth wheel trailer coast to coast with my truck. Never had an engine failure or any engine or transmission problems.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Under/over: space

Wouldn't consider using any other oil in our 3 vehicles

We use your product in our (2) cars and our 2500 truck. After burning the oil in our transmit ion in a previous
motor home, we switched to AMS andhad NO further oil problems .

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Trey512001: space

Signature oil

25000 miles with a warranty! Incredible but thanks Amsoil

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Really good

Just one oil change in a year.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Really good

Just one oil change in a year.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

Truly the best motor oil on the planet

The oil doesn't break down, does not lose his lubricity over a long period of time awesome motor oil

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Father Bob: space

5W-20 Oil and Filter

My mechanic says that the Amsoil 5W-20 oil and filter is the best thing, other than keeping the car clean, that I can do for my Charger. I agree with my mechanic.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mustang Mike: space

Would buy again

Great product, towing & severe duty.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
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