AMSOIL DOMINATOR 10W-40 Fully Synthetic Engine Oil (RD40)

AMSOIL DOMINATOR 10W-40 is a fully synthetic racing engine oil engineered to help maximize power while delivering outstanding protection in extreme high-rpm, high-heat and shock-load conditions. Its shear-stable formulation helps maintain a strong protective oil film, and it’s heavily fortified with zinc and phosphorus anti-wear additives for added protection in severe racing environments.

Key Benefits

• Shear-stable formula helps resist viscosity loss and maintain oil film strength

• Heavily fortified with zinc and phosphorus anti-wear additives for extreme protection

• Designed to help reduce friction for maximum horsepower and cooler engine temperatures

• Built to handle high heat and severe-duty racing stress

Applications (Specifications / Approvals)

Use in high-performance racing engines where an SAE 40 viscosity oil is suitable, including (but not limited to):

• asphalt late model

• dirt late model

• modified big block

• modified small block

• GM crate late model

• marine

• sprint

Compatible with leaded and unleaded gasoline, diesel, alcohol, nitromethane and nitrous oxide.

Change / Drain Interval (Service Life)

• Consider the event, application and operating conditions. When competing, the vehicle owner is responsible for determining an appropriate oil service interval.

• Not intended for long-term use in passenger cars/light trucks.

Note: Always confirm the required viscosity and specifications in your owner’s manual or with your engine builder before use.