AMSOIL DOMINATOR® 100% Synthetic Racing Oil - 10w-30 / 10w-40 / 15w-50

AMSOIL DOMINATOR® 100% Synthetic Racing Oil is a premium full synthetic racing lubricant engineered for high-performance engines operating under extreme heat, elevated RPM, and severe racing loads. AMSOIL positions DOMINATOR® specifically for racing and high-performance engines, with a shear-stable formula designed to maximize power while maintaining strong engine protection.

Designed to resist viscosity loss, reduce friction, and protect critical engine components under intense use, DOMINATOR® delivers strong oil film retention, added anti-wear protection, and stable performance for demanding race and high-output applications. AMSOIL says it is heavily fortified with zinc and phosphorus anti-wear additives and uses a proprietary friction modifier to help maximize horsepower and reduce engine temperatures.

Built for engines running on the ragged edge, this oil is ideal for racing engines, track-driven builds, and high-output applications where a dedicated racing oil is required. AMSOIL also states DOMINATOR® is compatible with leaded and unleaded gasoline, diesel, alcohol, nitromethane, and nitrous oxide applications.

Performance tier

Top tier – race / high performance

Developed for high-performance racing engines and aggressive builds where maximum protection, viscosity stability, and power are required.

Variants

10w-30 – quart bottle
Best for racing engines where a lighter racing viscosity is preferred
commonly selected for high-revving performance applications

10w-40 – quart bottle
Most balanced option for many performance builds
ideal for high heat, aggressive driving, and track use

15w-50 – quart bottle
Designed for extreme heat and severe racing conditions
Best for high-output engines, endurance use, and applications where a heavier racing oil is preferred 

features

100% synthetic racing oil
Robust formulation resists viscosity loss
Proprietary friction modifier helps maximize horsepower and torque
Fortified with zinc and phosphorus anti-wear additives
Strong film strength under extreme heat
Excellent startup protection from low pour point performance
Thermally stable chemistry for racing conditions 

Fitment

High-performance racing engines
Street and track builds

Compatible with engines where 10w-30, 10w-40, or 15w-50 racing oil is suitable depending on engine setup, bearing clearances, operating temperature, and builder recommendation.

Specifications

Type: 100% synthetic racing oil
Viscosities available: 10w-30 / 10w-40 / 15w-50
Available sizes:
10w-30 – quart bottle
10w-40 – quart bottle
15w-50 – quart bottle
Brand: AMSOIL

Note

This is a racing oil intended for competition and high-performance use. AMSOIL says DOMINATOR® is not recommended for long-term use in passenger cars or light trucks because it is fortified with high levels of zinc and phosphorus and does not carry the API service classifications required by many standard passenger vehicles. AMSOIL does note it can be an ideal recommendation for street rods, muscle cars, and other high-performance vehicles driven on the street.

Not sure what to run? message us and we’ll recommend the right setup for your build

Recommended pairings

AMSOIL Severe Gear
AMSOIL racing brake fluid
AMSOIL coolant