Freedom Series 15W-50 100% Synthetic Racing Oil
AMSOIL Racing Oil
Heavyweight 100 percent synthetic engine oil engineered for high-horsepower, turbocharged competition diesel engines.
AMSOIL products
AMSOIL Racing Oil
Synthetic racing oil and break-in oil for competition engines, performance builds, and severe service.
AMSOIL racing oil
Buy AMSOIL racing oil for circle track, drag, road race, and high-performance street builds, plus Freedom Series Break-In Oil for fresh engine assemblies. Dominator Racing oils are formulated for extreme heat, RPM, and load conditions.
Order online, or save up to 25 percent on every order by joining the AMSOIL Preferred Customer program for $20 USD per year. For local pickup, the order online covers the AMSOIL Dealer locator and how to find AMSOIL near you.
Add an AMSOIL Preferred Customer membership to the same cart to unlock up to 25% off qualifying products. Existing members can sign in, and qualifying orders currently over $100 can ship free.
Shop by Product Type
Start with a product family, then use the AMSOIL online lookup guide to choose the formula and viscosity that fits your application.
Freedom Series
Freedom Series Break-In Oil
AMSOIL Racing Oil
SAE 30 break-in formulation developed with Fleece Performance Engineering and Freedom Racing Engines for new and freshly rebuilt high-performance.
Racing
AMSOIL DOMINATOR® 10W-30 100% Synthetic Racing Oil
AMSOIL Racing Oil
AMSOIL DOMINATOR 10W-30 Synthetic Racing Oil is a shear-stable, multi-viscosity race formula built for high-performance gasoline.
AMSOIL DOMINATOR® 10W-40 100% Synthetic Racing Oil
AMSOIL Racing Oil
AMSOIL DOMINATOR 10W-40 Synthetic Racing Oil is a shear-stable, multi-viscosity race formula built for high-performance gasoline.
AMSOIL DOMINATOR® 15W-50 100% Synthetic Racing Oil
AMSOIL Racing Oil
AMSOIL DOMINATOR 15W-50 Synthetic Racing Oil is a heavy multi-viscosity race formula built for high-performance gasoline.
AMSOIL DOMINATOR® 5W-20 100% Synthetic Racing Oil
AMSOIL Racing Oil
AMSOIL DOMINATOR 5W-20 Synthetic Racing Oil is the lightest grade in the DOMINATOR race-oil family, built.
AMSOIL DOMINATOR® SAE 60 100% Synthetic Racing Oil
AMSOIL Racing Oil
AMSOIL DOMINATOR SAE 60 Synthetic Racing Oil is the heaviest grade in the DOMINATOR race-oil family, formulated for top fuel, pro-stock tractor pull.
DOMINATOR®
AMSOIL DOMINATOR® 20W-50 Competition Diesel Oil
AMSOIL Racing Oil
100 percent synthetic race-only viscosity grade engineered for high-horsepower, turbocharged competition diesel engines.
SAE
AMSOIL SAE 30 Break-In Oil
AMSOIL Racing Oil
Friction-modifier-free engine oil engineered for the first running hours and miles of new and freshly rebuilt high-performance and racing engines.