AMSOIL Racing Motor Oils

AMSOIL Racing Oils are formulated to provide the best possible protection and performance in racing engines. These oils are designed to withstand the high temperatures and pressures found in racing applications. Racing conditions call for an oil that can protect Against wear, reduce friction and maintain viscosity. AMSOIL Racing Oils deliver this protection while providing the best possible performance.

Racing engines operate at higher temperatures and pressures than street or even performance engines. This requires an oil that can withstand these conditions without breaking down. AMSOIL Racing Oils are designed to do just that. They are formulated with high-quality base oils and additives that provide the best possible protection against wear, reduce friction and maintain viscosity.

AMSOIL Racing Oils are available in a variety of grades to meet the specific needs of your engine. Choose the oil that is right for your application to get the best possible performance and protection from your engine oil
DOMINATOR® 5W-20 Racing Oil
DOMINATOR® 10W-30 Racing Oil
DOMINATOR® 15W-50 Racing Oil
AMSOIL DOMINATOR 20W-50 Competition Diesel Oil
DOMINATOR 20W-50 Competition Diesel Oil
DOMINATOR® SAE 60 Racing Oil
AMSOIL Briggs & Stratton Synthetic 4T Racing Oil
Briggs & Stratton Synthetic 4T Racing Oil
AMSOIL DOMINATOR® Synthetic 2-Stroke Racing Oil
DOMINATOR® Synthetic 2-Stroke Racing Oil
AMSOIL Break-In Oil (SAE 30)
Break-In Oil (SAE 30)
AMSOIL Engine Assembly Lube
Engine Assembly Lube
Why isn’t AMSOIL Dominator® Synthetic Racing Oil recommended for street-driven vehicles?
AMSOIL Dominator Synthetic Racing Oil is a premium-quality oil formulated for maximum protection in high-performance and racing applications. It is fortified with high levels of zinc and phosphorus, which are incompatible with catalytic converters common in today’s street-driven vehicles; therefore, Dominator Racing Oil does not carry API service classifications required by many standard passenger vehicles. However, Dominator Racing Oil is the ideal recommendation for street rods, muscle cars and other high-performance vehicles driven on the street.
AMSOIL the Exclusive Distributor of Briggs & Stratton 4T Racing Oil
Synthetic 4T Racing Oil is formulated specifically to handle the severity of Briggs & Stratton modified competition engines used in kart, junior drag, quarter midget and other racing applications and is recommended for any four-stroke air-cooled competition engine, whether single- or multi-cylinder, splash- or pressure-lubricated.

Combining the protection qualities of a heavy oil with the performance benefits of a light oil, Synthetic 4T Racing Oil helps racers elicit the most horsepower and longest life from their engines. It provides outstanding protection in both stock karts and limited-mod kart applications running over 10,000 rpm, with no sacrifice in horsepower. Racers using competing oils need both a light and a medium oil to achieve a similar combination of protection and horsepower. Synthetic 4T Racing Oil was dyno-tested using the Briggs & Stratton Animal engine, and proven to provide outstanding performance in the most-extreme conditions possible. It effectively resists the elevated heat common to high performance racing engines, and it protects against the formation of corrosion between races and during longer storage periods.

“We are really excited about this relationship with AMSOIL,” said Director of Briggs & Stratton Racing David Klaus. “After a year in development and our first race season under our belt, racers are seeing the benefits of an oil engineered specifically for the environment in which it operates.”
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