Racers can't win what they don't finish. That's why AMSOIL formulators built DOMINATOR® 2-Stroke Racing Oil. This complex blend of oils and additives directly addresses the heat, pressure and friction of race-engineered engines. These engines operate on the edge, yet engine reliability is critical. DOMINATOR does an outstanding job protecting high-performance engines. It adds durability that professional racing teams depend on and delivers confidence so engines can be pushed to the limit.
Package sizes include:
Quart Bottle
Gallon Bottle
16-Gallon Keg
30-Gallon Drum
55-Gallon Drum
Use in high-performance stock or modified two-stroke engines, including air- or liquid-cooled snowmobiles, personal watercraft, motorcycles (moto X), ATVs, go-carts and outboard motors**. Good for use with coated or non-coated pistons, high-octane racing fuels and exhaust power valves. Compatible with most other two-stroke oils;
however, mixing oils should be minimized.
Use in oil-injected and pre-mix applications that require API TC oils. In pre-mix applications, DOMINATOR delivers outstanding protection at 50:1 (2.6 oz. oil per U.S. gallon of gas), although many racers modify the mix ratio to suit their setup. Not suitable for use with alcohol or nitro-methane fuels.
** Not suitable for long-term use in outboard motors as a TC-W3-type oil, although excellent as a race oil for short-term use where motors are periodically inspected.
DOMINATOR, an AMSOIL exclusive formulation, lubricates and protects high performance two-cycle motors, both on and off the track. High performance motors, particularly those that are modified, operate hotter and at higher RPMs than recreational motors, and they need good oil for peak performance. DOMINATOR is engineered for racing. It has the right film strength and clean burning properties for "on the edge" operation.
• Provides
excellent film strength for high heat, high RPM motors
• Reduces friction for maximum power
• Recommended for use with coated or non-coated racing pistons
• Recommended for use with exhaust power valves
• Recommended for use with high octane racing gas
• Burns clean; Prevents ring sticking and plug fouling
• Provides excellent protection at 50:1 pre-mix or in injection system
High-performance and race-designed two-stroke engines operate under severe conditions. They are modified for higher compression ratios, higher rpm and leaner combustion, all of which increase heat and pressure. High heat can quickly burn off light oils and cause rapid piston expansion, decreasing piston-to-cylinder wall clearances and increasing the likelihood of piston scuffing and seizure. High pressure can exceed the film strength of low-viscosity oils, which promotes crankshaft bearing wear and pitting.
DOMINATOR is purpose-built for outstanding film strength and lubricity. It is engineered with carefully selected, higher-viscosity synthetic base oils to withstand the high heat and pressure common to high-performance and racing applications. DOMINATOR's anti-friction chemistry is race-proven to provide an extra measure of protection against piston scuffing and bearing wear.
The oil and fuel burned in the two-stroke combustion process leave destructive deposits on the pistons, rings and in the combustion chamber. Excessive deposits can lead to catastrophic engine problems, including ring sticking, exhaust port blocking and pre-ignition.
AMSOIL DOMINATOR is formulated with clean-burning synthetic base oils and powerful high-temperature detergent additives for exceptional deposit control. It helps prevent the power-robbing carbon deposits that cause ring sticking, exhaust port blocking and pre-ignition. AMSOIL DOMINATOR is optimized for severe
service.
During the opening weekend of the 2015/16 AMSOIL Championship Snocross season, professional rider Lincoln Lemieux's Ski-Doo* RS600 suffered a broken hose clamp, allowing the coolant to pump from the system. The intense heat that resulted melted the exhaust power valve covers, O-rings and engine gaskets. DOMINATOR Synthetic 2-Stroke Racing Oil, however, delivered exceptional protection despite the severe conditions. The rings and pistons were still free and the crankshaft turned freely. Scheuring Speed Sports is able to reuse the engine after repairing the melted parts, providing concrete testimony of DOMINATOR's superior performance.
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 TDR.
Keep out of the reach of children. Don't pollute. Return used oil to collection centers.
| TYPICAL TECHNICAL PROPERTIES DOMINATOR® Synthetic 2-Stroke Racing Oil | |
| Kinematic Viscosity @ 100°C, cSt (ASTM D445) | 7.0 |
| Kinematic Viscosity @ 40°C, cSt (ASTM D445) | 35.2 |
| Viscosity Index (ASTM D2270) | 166 |
| Pour Point °C (°F) (ASTM D97) | -54 (-65) |
| Flash Point °C (°F) (ASTM D92) | 94 (201) |
| Fire Point °C (°F) (ASTM D92) | 94 (201) |
See what happens when snowmobile looses all of its coolant while still on the track!
Product Name: DOMINATOR™ Synthetic 2-Cycle Racing Oil (TDR)
Current Rating: 4.94out of 5 stars
Votes & Reviews: 78 vote(s) and 48 user reviews.
Reviewed by BC: 
I've been using this oil in my rx8 for a few years now and it is great for premixing with fuel and in the oil injection system. Rotaries need fresh two cycle oil and this stuff works
Reviewed by Jobajoe:
I have used other higher priced synthetics and this Dominator from Amsoil burns cleaner, gives great protection and costs less! Been running in cr500af for past couple months, will buy again.
Reviewed by Kid fast:
All I use is a soul I run it as a premix in my two strokes it is the best premix I have used I run 40:1 and it runs great no detonating and no problems minimal to no smoke not a potent smell it's just all round great oil the best.
Reviewed by Ken:
I have heard of Amsoil a long time. This is the first time I have used it. Seems like really good stuff without breaking the bank. I bought a 1 year membership and bought a bunch of supplies for the start of desert season.
Reviewed by Ken:
I have heard of Amsoil a long time. This is the first time I have used it. Seems like really good stuff without breaking the bank. I bought a 1 year membership and bought a bunch of supplies for the start of desert season.
Reviewed by billyghoate:
I live in fl where it is hot in the summer. Oil breakdown is paramount on my harley's engine life! With the viscosity and proven quality of Amsoil 60 wt oil it has served me and my ultra classic bike like no other! Oil changes every 20k makes it well worth the couple $$ more for Amsoil than cheap competitor oils. Make it your own choice like i did for everything from weedeaters to my truck!
Reviewed by Enduro Eddie:
I use the dominator pre mix oil in my 2015 Ktm 250 xcw. I mix it at 50:1 with 91 octane pump gas. Have had no problems with it and bike runs great at all temperature ranges. I race hare scrambles and enduros as a B rider so I am putting it through it's paces and it has performed great!
Reviewed by Aaron Ford:
I have used several other racing oils and have had issues with all of them. Maxima Castor 927 came out of solution when the temperatures dropped. Klotz required regular remixing. I started using Dominator after my last piston change. That was 2 years ago. I haven't bought a piston since. It mixes easily. It stays in solution. The red color makes identifying the fuels easy, especially when the tags fall off the cans...
Reviewed by Ryno:
Dominator is the best oil I have ever used.
Canada
United States
Best high performance 2 stroke oil
I use the Dominator 2 stroke oil in my high-performance jet skis and no problems, Inside looks like new when you do a yearly tear down.