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Racing Only Motor Oil

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  • AMSOIL DOMINATOR® 5W-20 100% Synthetic Racing Oil


    • Formulated specifically for racing & high-performance engines
    • Robust formulation resists viscosity loss
    • Proprietary friction modifier maximizes horsepower & torque
    • Fortified with anti-wear additives for extra protection
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    $22.39

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  • AMSOIL DOMINATOR® 10W-30 100% Synthetic Racing Oil


    Provides superior performance and maximum protection in high-performance and racing applications. DOMINATOR is engineered from advanced synthetic technology to better withstand the elevated rpm, high temperatures and shock-loading common to racing applications.
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    $21.69

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  • AMSOIL DOMINATOR® 15W-50 100% Synthetic Racing Oil


    • Formulated specifically for racing & high-performance engines
    • Robust formulation resists viscosity loss
    • Proprietary friction modifier maximizes horsepower & torque
    • Fortified with anti-wear additives for extra protection
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    $22.59

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  • AMSOIL DOMINATOR® 20W-50 Competition Diesel Oil


    The Confidence to Compete, The Protection To Win

    • Specifically designed for high-HP diesel engines
    • Outstanding bearing protection under extreme loading
    • Delivers 50% more film thickness1
    • Robust viscosity control

    1compared to the 3.5cP HTHS limit for SAE 15W-40

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    $81.09

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    $81.09

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  • AMSOIL DOMINATOR® SAE 60 100% Synthetic Racing Oil


    • Formulated specifically for racing & high-performance engines
    • Robust formulation resists viscosity loss
    • Proprietary friction modifier maximizes horsepower & torque
    • Fortified with anti-wear additives for extra protection
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    $23.29

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  • Briggs & Stratton Synthetic 4T Racing Oil


    • Tested and validated by Briggs & Stratton and AMSOIL
    • Combines the protection of a heavier oil with the performance of a lite oil
    • Reduces harmful heat
    • Inhibits foam
    • Resists corrosion
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    $19.94

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  • AMSOIL DOMINATOR® 100% Synthetic 2-Stroke Racing Oil


    • Excellent film strength for high-heat, high-rpm engines
    • Anti-friction formula for maximum power
    • Burns clean; helps prevent ring sticking and plug fouling
    • Protects coated and non-coated racing pistons

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  • AMSOIL SAE 30 Break-In Oil


    • Quickly seats piston rings
    • Increased zinc and phosphorus protect against wear
    • Maximizes compression and power
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    $14.29

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  • AMSOIL Engine Assembly Lube


    High-Quality Assembly Lube for Racing, Performance and Other Four-Stroke Engines

    AMSOIL Engine Assembly Lube (EAL) is formulated to cling to engine parts and provide exceptional wear protection, while inhibiting rust and corrosion in newly built or rebuilt four-stroke engines. It is designed to dissolve in oil, helping eliminate oil port clogging and deposit formation.
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    $13.59

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Synthetic Racing Oil

What’s the difference between racing oil and regular oil

Racing oil is designed specifically for the increased demands of racing engines. The type and amount of additives in its formulation are tailored to provide additional protection against wear and extreme heat common to racing engines. Boosting additive content in these areas doesn’t leave room in the formulation for sufficient levels of additives that passenger-car/light-truck motor oil requires, such as friction modifiers to improve fuel economy or corrosion inhibitors to fight corrosion throughout longer drain intervals. While racing oil is designed to excel in extreme conditions over a relatively short drain interval, passenger-car/light-truck motor oil must excel in multiple areas throughout longer drain intervals.

Why do racing engines need specialty oil?

The powerful, modified engines in racing vehicles produce extreme heat and pressures that greatly exceed those of the average car or truck engine. A 900-horsepower Pro 4x4 racing truck, for example, produces oil temperatures in excess of 300°F (149°C). By comparison, the engine in a typical car or truck might hit 230°F (110°C). Extreme heat from racing causes motor oil to break down sooner. In fact, the rate of oxidation doubles for every 18°F (10°C) increase in oil temperature. Racing engines also produce tremendous pressures between components, such as the crankshaft journals and bearings, that can shear the oil’s molecules, reducing its viscosity. For these reasons, racing vehicles require specialty racing oil, in addition to gear oil and racing transmission fluid. Racing engines also require properly formulated assembly lube and break-in oil to achieve maximum power and life.

Can I use racing motor oil in my car?

Most competitors change oil every couple races, and sometimes after every race. For that reason, racing motor oil is typically formulated with a lower total base number (TBN), which is a measure of its ability to neutralize acids. Motor oils for passenger cars/light trucks require a higher TBN since they’re changed much less frequently.

In addition, the motor oil you use in your daily driver should excel in other areas unimportant to racers, such as maximizing fuel economy and providing easier cold starts. For these reasons, it’s best to use a motor oil formulated specifically for your vehicle and not a racing oil. Find AMSOIL product recommendations for your vehicle here.