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AMSOIL Freedom Series Oils

Freedom Series covers three application groups: 10W-30, 5W-40 and 15W-40 diesel oils for supported Fleece-equipped turbodiesel pickups; 15W-50 racing oil for supported competition diesel engines; and SAE 30 break-in oil for supported new or rebuilt high-performance engines. Confirm the build, required viscosity and current AMSOIL, manufacturer or engine-builder guidance.

Browse Freedom Series Review Diesel Products

You’ll complete your purchase on AMSOIL.com.

Core diesel oils

Choose the exact Freedom Series diesel viscosity

These three oils serve supported Fleece-equipped turbodiesel pickup applications. Confirm the pickup and required viscosity before opening the exact product.

AMSOIL Freedom Series 10W-30 100% Synthetic Diesel Oil quart

Freedom Series 10W-30 Diesel Oil

For supported turbodiesel pickups equipped with Fleece Performance products when the application calls for 10W-30.

View Freedom Series 10W-30 Diesel Oil
  • Use this oil only for a supported Fleece-equipped pickup application, not as a universal diesel-oil recommendation.
  • Confirm that 10W-30 is the required viscosity and follow current AMSOIL and manufacturer guidance.
AMSOIL Freedom Series 5W-40 100% Synthetic Diesel Oil quart

Freedom Series 5W-40 Diesel Oil

For supported turbodiesel pickups equipped with Fleece Performance products when the application calls for 5W-40.

View Freedom Series 5W-40 Diesel Oil
  • Use this oil only for a supported Fleece-equipped pickup application, not as a universal diesel-oil recommendation.
  • Confirm that 5W-40 is the required viscosity and follow current AMSOIL and manufacturer guidance.
AMSOIL Freedom Series 15W-40 100% Synthetic Diesel Oil quart

Freedom Series 15W-40 Diesel Oil

For supported turbodiesel pickups equipped with Fleece Performance products when the application calls for 15W-40.

View Freedom Series 15W-40 Diesel Oil
  • Use this oil only for a supported Fleece-equipped pickup application, not as a universal diesel-oil recommendation.
  • Confirm that 15W-40 is the required viscosity and follow current AMSOIL and manufacturer guidance.

Special-purpose oils

Racing and engine break-in

These products serve separate competition and break-in stages. Neither is a substitute for the three routine diesel-viscosity choices above.

AMSOIL Freedom Series 15W-50 100% Synthetic Racing Oil quart

15W-50 Competition-Diesel Racing Oil

For supported performance-modified competition diesel engines equipped with Fleece Performance products. It is a racing application, not routine pickup service oil.

View 15W-50 Competition-Diesel Racing Oil
  • Match the competition engine build and confirm that 15W-50 is the required racing viscosity.
  • Follow current AMSOIL and engine-builder guidance for the supported competition application.
AMSOIL Freedom Series SAE 30 Break-In Oil quart

SAE 30 Break-In Oil

For supported new or rebuilt high-performance and racing engines during the break-in stage. It is not the routine-service oil that follows break-in.

View SAE 30 Break-In Oil
  • Use only when the engine builder or manufacturer calls for an SAE 30 break-in oil.
  • Follow the required break-in procedure and change to the correct service oil at the specified point.

Vehicle and product match

Confirm the exact match before ordering

Use the AMSOIL lookup guide or the product detail page when year, make, model, engine, transmission, capacity, operating conditions or product specifications matter. ProEdge Lubricants is operated by an Authorized AMSOIL Dealer and points shoppers to current AMSOIL product information.

FAQ

Common questions

Are all Freedom Series oils routine diesel service oils?

No. The 15W-50 racing oil and SAE 30 break-in oil serve different application stages than the 10W-30, 5W-40 and 15W-40 diesel oils.

Can these descriptions replace engine-builder guidance?

No. Confirm the exact Fleece-equipped application and follow current manufacturer, builder and product directions.