Extreme-Heat Protection
Designed for high operating temperatures created by racing, high horsepower and sustained engine load.
AMSOIL racing lubricants are engineered for racers, engine builders and performance enthusiasts who demand strong protection under high RPM, extreme heat and severe loads. Explore DOMINATOR Racing Oil, AMSOIL Break-In Oil and other specialized lubricants for circle track, drag racing, off-road racing, pulling and high-horsepower applications.
Racing engines operate under conditions ordinary passenger-car oil was not designed to handle. The right racing lubricant helps protect heavily stressed components while supporting consistent performance.
Designed for high operating temperatures created by racing, high horsepower and sustained engine load.
Helps protect bearings, cylinder walls, camshafts and other highly stressed engine components.
Purpose-built products for specialized racing and performance applications rather than ordinary commuting.
Shear-stable formulations are designed to maintain protective viscosity under demanding race conditions.
Always follow the engine builder's viscosity and break-in recommendations. These featured products serve different purposes and should not be treated as interchangeable.

A competition-focused, low-viscosity racing oil for engines built and clearanced to use 5W-20 under the engine builder's recommendation.

Formulated for newly built or rebuilt engines during the initial break-in period. It is designed to support controlled ring seating while protecting cams and other critical components.

A shear-stable synthetic racing formula for high-performance and high-horsepower engines that require a heavier racing viscosity.
Racing oil selection depends on engine design, clearances, fuel, temperature, horsepower and the engine builder's requirements. AMSOIL offers specialized options for a wide range of competition environments.
Use the viscosity specified by your engine builder. Oil choice should match bearing clearances, temperature and intended use.
Break-In Oil is temporary and serves a different purpose than DOMINATOR Racing Oil. Follow the recommended changeover procedure.
Dedicated racing oils are designed for competition. Select a street-approved motor oil for daily-driven vehicles unless otherwise directed.
AMSOIL Preferred Customers can save up to 25% compared with retail pricing and receive free shipping on qualifying orders. Membership is $10 for a six-month trial or $20 for one year.
DOMINATOR is formulated for competition use. A daily-driven street vehicle will usually be better served by an AMSOIL motor oil formulated for normal road use and the vehicle manufacturer's required specifications.
Follow the engine builder's recommendation. The correct viscosity depends on engine clearances, oil temperature, horsepower, fuel type and the racing application.
Use Break-In Oil only for the engine builder's or manufacturer's recommended break-in period. After the rings have seated and break-in is complete, change to the appropriate operating oil.
Orders are completed through AMSOIL using Synthetic Pros dealer code 30339782. AMSOIL processes the order and ships the products directly to the customer.
Use any Shop Racing Products button on this page to visit the official AMSOIL racing category with Synthetic Pros dealer code 30339782 included in the link.
Shop AMSOIL racing oil, Break-In Oil and specialized competition lubricants through Synthetic Pros with direct ordering and shipping from AMSOIL.