AMSOIL synthetic gear oils deliver superior protection for differentials, manual transmissions, and gear-driven systems operating under extreme pressure and high temperatures. The SEVERE GEAR line offers a comprehensive range of viscosities, including 75W-90, 75W-85, 75W-110, 75W-140, 80W-90, and SAE 250, engineered to handle heavy towing, hauling, and off-road conditions. These 100% synthetic formulations resist thermal breakdown, minimize wear, and extend gear life in demanding applications.
For extended drain intervals, AMSOIL 75W-90 and 80W-140 Long Life synthetic gear lubes provide lasting protection while reducing maintenance frequency. Specialty products like SLIP LOCK Differential Additive eliminate chatter in limited-slip differentials, while the synthetic Chaincase and Gear Oil is designed specifically for powersports applications.
AMSOIL also offers 75W-90 synthetic marine gear lube formulated to protect lower units in outboard and sterndrive applications from rust, corrosion, and water contamination. Whether you need gear oil for trucks, SUVs, recreational vehicles, or marine equipment, AMSOIL synthetic gear lubricants deliver the performance and durability serious enthusiasts and professionals demand.
