"USAGE FEATURES AND BENEFITS 75W-80 GL4 Prepared with high quality synthetic and mineral base oils, providing high pressure resistance, preventing oil oxidation, containing additives that protect the material against rust and prevent wear, developed for use under heavy duty conditions for differential, manual transmission and hypoid gears. synthetic gear oils. It is formulated for use in equipment containing hypoid gears in high speed/impact load, high speed/low torque and/or low speed/high torque operating conditions. It is used in heavy-duty axles and final drive axles, light and heavy-duty trucks and commercial vehicles, industrial, commercial and automotive applications with medium to heavy duty gears that require API GL-5 performance.”