AMSOIL Racing Motor Oils are 100% synthetic oils engineered to maximize horsepower and withstand the rigorous demands of racing and high-performance engines.
AMSOIL DOMINATOR® 100% Synthetic 2-Stroke Racing Oil
AMSOIL DOMINATOR®️ Synthetic 2-Stroke Racing Oil is a specialized oil for high-performance 2-stroke engines, designed to deliver maximum power and protection.
AMSOIL Break-In Oil (SAE 30)
AMSOIL SAE 30 Break-In Oil is specially designed for newly assembled or rebuilt high-performance and racing engines. Its friction-modifier-free formula assists in proper ring seating for maximum compression and reduced blow-by, while protecting cams and bearings during the critical break-in period.
Briggs & Stratton Synthetic 4T Racing Oil
Briggs & Stratton Synthetic 4T Racing Oil is formulated to maximize horsepower and protect high-performance racing engines, including air-cooled models, from heat and wear.
AMSOIL DOMINATOR® SAE 60 100% Synthetic Racing Oil
AMSOIL DOMINATOR® SAE 60 Synthetic Racing Oil is engineered for high-performance and racing applications, offering maximum power and engine protection.
AMSOIL DOMINATOR® 15W-50 100% Synthetic Racing Oil
AMSOIL DOMINATOR® 15W-50 Racing Oil is engineered for high-performance and racing applications, providing superior performance and maximum protection.
AMSOIL DOMINATOR® 10W-30 100% Synthetic Racing Oil
AMSOIL DOMINATOR® 10W-30 Racing Oil is specifically designed for high-performance and racing applications. It offers superior performance and maximum protection, engineered to withstand elevated rpm, high temperatures, and shock-loading common in racing.
AMSOIL DOMINATOR® 5W-20 100% Synthetic Racing Oil
AMSOIL DOMINATOR® 5W-20 is a high-performance synthetic racing oil designed to provide maximum protection and superior performance in racing applications. It is engineered to withstand elevated rpm, high temperatures, and shock-loading typical in racing.
AMSOIL DOMINATOR® 20W-50 Competition Diesel Oil
AMSOIL DOMINATOR® 20W-50 Competition Diesel Oil is designed for high-horsepower diesel engines, offering robust protection and performance in diesel competition.
AMSOIL DOMINATOR® 10W-40 100% Synthetic Racing Oil
AMSOIL DOMINATOR® 10W-40 Racing Oil is engineered for high-performance and racing applications, offering superior performance and maximum protection against extreme conditions.
AMSOIL DOMINATOR - Performance Testing
In this video, AMSOIL built, tested, and tore down a 1,000 HP LS Engine running AMSOIL DOMINATOR 15W-50.
AMSOIL put their LS engine & DOMINATOR racing oil to the test by simulating drag-strip passes, autocross, and daily driving. AMSOIL simulated 40 drag racing passes, about 8 hours of simulated autocross racing, and 15 hours of simulated daily driving, including street driving, highway, and freeway.
DOMINATOR has extra zinc and phosphorous additives, which help keeps the valvetrain lubricated, especially in engines like the LS that use a push rod to rocker arm interface. During the tear down, you can see how all the engine components faired during the torture test, showing all the engine parts were fine, show signs of very minimal wear, and were ready for re-assembly to be used again.
DOMINATOR Competition Diesel Testing
AMSOIL DOMINATOR® 20W-50 Competition Diesel Oil delivers 50% more film thickness to withstand high cylinder pressures and protect against wear (compared to the 3.5 cP HTHS limit for SAE 15W-40).
20W-50 oil is a commonly used oil weight for many different applications, including V-Twin engines (like Harleys - where it can be used in all 3 sumps), it's great for high-mileage diesel and gasoline engines, also recommended in classic car engines with flat-tappet camshafts, excels in hydrostatic transmissions, and is also used in high-performance competition diesel engines.
SAVE 25% + FREE Shipping!
Sign up today for 25% off all AMSOIL products and get FREE shipping on orders of $100 or more as a preferred customer.