Sunlube Automotive Gear Oil SAE 85W-140 is a premium gear lubricant formulated from high-quality refined base oils and advanced sulfur-phosphorus extreme pressure additives. It provides exceptional wear, rust, and corrosion protection under a wide range of temperature and load conditions. Specifically designed for manual transmissions and rear axles of passenger cars and light to medium-duty vehicles, it performs reliably under both high-speed/low-torque and low-speed/high-torque operations. This lubricant is recommended where API GL-4 performance is required and is not suitable for heavy-duty hypoid axles unless specified by the manufacturer.