Engineered for high-demand applications, including trailer towing, heavy hauling, 4X4 off-road driving, commercial use and racing. Protects gears and bearings from scoring and wear. Excellent cold-flow properties. Outperforms all conventional gear oils. Recommended for all types of vehicles.

Engineered for high-demand applications, including trailer towing, heavy hauling, 4X4 off-road driving, commercial use and racing. Protects gears and bearings from scoring and wear. Excellent cold-flow properties. Outperforms all conventional gear oils. Recommended for all types of vehicles.

Engineered for high-demand applications, including trailer towing, heavy hauling, 4X4 off-road driving, commercial use and racing. Protects gears and bearings from scoring and wear. Excellent cold-flow properties. Outperforms all conventional gear oils. Recommended for all types of vehicles.

Recommended for racing applications that require heavier-viscosity gear lubricants. Engineered specifically for the demands of severe racing conditions. Provides improved flow over conventional oils, reducing viscous drag and power loss. The ultimate line of defense against wear, pitting and scoring. Extends gear life.

Recommended for racing applications that require heavier-viscosity gear lubricants. Engineered specifically for the demands of severe racing conditions. Provides improved flow over conventional oils, reducing viscous drag and power loss. The ultimate line of defense against wear, pitting and scoring. Extends gear life.

Engineered for extended drain intervals up to 500,000 miles as set by equipment manufacturers for over-the-road trucks and heavy equipment. Provides long life in passenger cars and trucks. Excellent all season summer and winter performance. Outperforms all conventional gear oils.

Engineered for extended drain intervals up to 500,000 miles as set by equipment manufacturers for over-the-road trucks and heavy equipment. Provides long life in passenger cars and trucks. Excellent all season summer and winter performance. Outperforms all conventional gear oils.

For applications specifying SAE 80W-90 conventional gear lube. Provides improved cold flow properties, high viscosity index and heat resistance. Contains an over-treat of high-quality additives, exceeding the minimum standards. Provides excellent wear protection and long equipment life.

True marine gear performance. Provides superior protection from shock loading. Resists foam and retains extreme-pressure qualities even when subjected to 10% water contamination. For use in outboard lower units, sterndrives, V-drives, bow and tunnel thrusters and marine transmissions Excellent for use in ATVs.

Formulated with advanced friction modifiers. Eliminates gear-housing chatter in cars, trucks and SUVs equipped with limited-slip, positraction and locking differentials. For use with both synthetic and petroleum gear lubricants and safely replaces manufacturer-recommended friction modifiers.

Specifically designed to fit AMSOIL quart, gallon and Twin Pack bottles. Guarantees efficient, quick dispensing of AMSOIL gear oils, transmission fluids and any oil that may need to be pumped. Great for fluid fills in differentials, transmissions, transaxles, boat lower units and boat sterndrives.