Sunlube Automotive Gear Oil SAE 140 is a high-quality gear lubricant formulated with refined base oils and advanced extreme pressure sulfur-phosphorous additives. It provides exceptional protection against rust, corrosion, and wear under a wide range of operating conditions. This oil is recommended for manual transmissions in passenger cars and on/off-road vehicles operating under both high-speed, low-torque and low-speed, high-torque conditions. It is ideal as a rear axle lubricant for light-duty vehicles requiring API GL-4 specification, but not suitable for heavy-duty hypoid axles unless specified by the manufacturer.