Synthetic 2-Cycle Racing Oil (TDR)
Racers can't win what they don't finish. That's why AMSOIL formulators built DOMINATOR® 2-Cycle 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.
See Pricing Information or Place an
Package sizes include:
1-Quart Bottles (case of 12)
1-Gallon Bottles (case of 4)
- Excellent film strength for high heat, high-rpm motors
- Anti-friction formula for maximum power
- Burns clean; helps prevent ring sticking and plug fouling
- Protects coated and non-coated racing pistons
See Article: Two-Cycle Engine Applications and Lubrication Needs
Excellent Lubricity and Film Strength
High-performance and race-designed two-cycle 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. See teardown photos below.
The oil and fuel burned in the two-cycle 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.
RACING IS RESEARCH™
AMSOIL disassembled the Rotax motor from Scheuring Speed Sports' Ski-Doo
race snowmobile ridden by Robbie Malinoski during the 2010/2011 professional snocross tour. Both pistons revealed
minimal wear and were suitable for continued use. AMSOIL DOMINATOR delivered outstanding protection for Malinoski's
Ski-Doo in the most severe environment.
DOMINATOR is recommended for use in high performance stock or modified
two-cycle motors, 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-cycle oils; however, mixing oils should be minimized.
Use in oil-injected and pre-mix applications where API TC oils are specified. In pre-mix applications, DOMINATOR
delivers outstanding protection at 50:1 pre-mix ratios (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.
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). An
MSDS is available via the Internet at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of
TYPICAL TECHNICAL PROPERTIES
DOMINATOR™ Synthetic 2-Cycle Racing Oil
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)
Viscosity Index (ASTM D-2270)
Pour Point °C (°F) (ASTM D 97)
Flash Point °C (°F) (ASTM D 92)
Fire Point °C (°F) (ASTM D 92)