- 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
Racing Testimonial: AMSOIL snowmobile oil saves engine
During the Pro Open final at the opening rounds of AMSOIL Championship Snocross, professional rider Lincoln Lemieux's Ski-Doo lost all its engine coolant after a hose clamp broke. Despite intense heat that melted the exhaust power valve covers, O-rings and gaskets, AMSOIL DOMINATOR Synthetic 2-Stroke Racing Oil protected Lemieux's engine so well, the team is able to reuse the engine after replacing the melted parts.
Excellent Lubricity and Film Strength
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.
RACING IS RESEARCH™
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.
Use in high-performance stock or modified two-stroke engines,
including air- or liquid-cooled snowmobiles, personal watercraft,
motorstrokes (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 Synthetic 2-Stroke Racing Oil
is Warranty Secure, keeping your factory
warranty intact. DOMINATOR Synthetic
2-Stroke Racing Oil is a high-performance
replacement for vehicle manufacturer-branded products and
is also backed by the AMSOIL Limited Warranty (G1363). For
details, visit www.amsoil.com/warrantysecure.
HEALTH & SAFETY
This product is not expected to cause health concerns when
used for the intended application and according to the
recommendations in the Safety Data Sheet (SDS). An SDS is
available via the Internet at www.amsoil.com or upon request at
(715) 392-7101. Keep Out of Reach of Children. Recycle used
oil and bottle.
*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
AMSOIL-engineered for use in the applications shown.
For detailed typical technical properties, download the product data bulletin.