AMSOIL V-Twin Oil Change Kit (HDCK) Combines everything needed to perform an AMSOIL oil change on most 1999-2016 Harley-Davidson* motorcycles in one convenient package. Includes four quarts of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil, one chrome AMSOIL Motorcycle Oil Filter and one drain-plug O-Ring. The AMSO...

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 ...

DOMINATOR® 15W-50 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 Multi-viscosity, shear-stable synthetic race formula ...

DOMINATOR® 15W-50 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 Multi-viscosity, shear-stable synthetic race formula ...

Signature Series Max-Duty Synthetic Diesel Oil 5W-30 Developed to protect the horsepower diesel enthusiasts crave and extend the life of hard-working commercial equipment in the most severe conditions. Signature Series synthetic technology delivers max-duty protection in on- and off-road applications. MAXIMUM ENGIN...

Signature Series Max-Duty Synthetic Diesel Oil 5W-30 Developed to protect the horsepower diesel enthusiasts crave and extend the life of hard-working commercial equipment in the most severe conditions. Signature Series synthetic technology delivers max-duty protection in on- and off-road applications. MAXIMUM ENGIN...

10W-40 100% SYNTHETIC 4T PERFORMANCE MOTORCYCLE OIL Reduces Friction, Heat and Wear AMSOIL 4T Performance Motorcycle Oil’s high-quality synthetic base oils naturally reduce friction better than mineral oils. Its outstanding high-temperature film strength and anti-wear additives reduce engine and transmission wear re...

Special Harley Davidson Synthetic V-Twin Transmission Fluid Protects against gear and bearing wear Delivers smooth shifts Helps eliminate loud thunks and gear noise Custom-engineered for quiet operation to eliminate transmission whine. Enables smooth shifts for crisp acceleration through each gear. Delivers ...

EXTREME POWER 0W-40 100% SYNTHETIC MOTOR OIL P400 Resists Oil Consumption High heat can cause some oils to volatilize (boil-off), leading to oil consumption and tailpipe emissions. AMSOIL Extreme Power 0W-40 100% Synthetic Motor Oil is formulated with premium synthetic base oils that naturally resist boil-off in the...

AMSOIL Signature Series 5W-50 100% Synthetic Motor Oil 75% more engine protection against horsepower loss and wear. 50% more cleaning power vs. AMSOIL OE Motor Oil Protects turbochargers 72% better than required by the GM dexos1 Gen 2 specification. 28% more acid-neutralizing power than Mobil 1. Trusted by p...