AMSOIL produces synthetic engine oils for high performance / racing applications and engine break-in.  Contact us for your racing oil needs.


Provides superior performance and maximum protection in high-performance and racing applications.
Withstands the elevated rpm, high temperatures, and shock-loading common to racing applications.

-> Fortified with zinc and phosphorus anti-wear additives to provide additional protection against scuffing and wear. <-
-> Proprietary friction modifier maximizes horsepower and keeps engine temperatures cooler. <-
-> Resists viscosity loss due to mechanical shear to maintain a strong protective oil film. <-
-> Maintains superior film strength at elevated operating temperatures. <-
-> Used by many custom, high-performance engine building companies. <-
-> Provides straight-grade protection in a multi-grade formulation. <-
-> Low pour point offers excellent cold-start protection. <-

5W-20   10W-30   15W-50   SAE 60

Proven in the lab and on the track to provide increased performance for stock and modified small-displacement air-cooled racing engines used in kart, junior drag, quarter midget, and other racing applications.

-> Specialized friction modifiers and advanced additives reduce friction energy loss while providing strong anti-wear properties. <-
-> Thermal stability helps reduce operating temperatures and guards against the formation of harmful sludge and deposits. <-
-> Corrosion inhibitors guard against the formation of corrosion between races and during longer periods of storage. <-
-> Resists the elevated heat common to high-performance racing engines, including air-cooled models. <-
-> Resists foam and forms a durable lubricating film between engine parts. <-

Change interval: Follow the OEM's or engine builder's recommendations.

NOTE: Do not mix with polyalkylene glycol (PAG) oils when converting to Synthetic 4T Racing Oil.  Drain existing oil and refill with Synthetic 4T Racing Oil.  Then operate engine at idle/low speed for 2-3 minutes.  Drain oil and refill with fresh Synthetic 4T Racing Oil.
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This oil has an emphasis toward high-horsepower and modified racing or trail motors.
Contains higher viscosity base oils for best overall protection and additives for higher operating temperatures.

-> Burns clean; helps prevent ring sticking and plug fouling. <-
-> Excellent film strength for high heat, high-rpm motors. <-
-> Protects coated and non-coated racing pistons. <-
-> Anti-friction formula for maximum power. <-
-> Injector use or 50:1 pre-mix. <-

DOMINATOR Synthetic 2-Cycle oil is recommended for use in high performance stock or modified two-cycle motors including air- or liquid-cooled snowmobiles, personal watercraft, motorcycles (moto X), ATVs, and go-carts.  Good for use with high-octane racing fuels and exhaust power valves.
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Break-in oil is formulated without friction modifiers which allows for quick and efficient piston ring seating against cylinder walls in new and rebuilt engines.  Contains zinc and phosphorus anti-wear additives to protect cam lobes, lifters, and rockers during the critical break-in period.

Follow the engine builder's or manufacturer's recommended break-in procedures if they are available.  The break-in period should not exceed 1,000 miles.
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Clings to engine parts and provides exceptional wear protection.

-> Inhibits rust and corrosion in newly built or rebuilt four-stroke engines. <-
-> Contains high amount of anti-wear additives. <-
-> Dissolves in engine oil. <-
Oler Equipment Care - Tulsa, Oklahoma