Sunlube Automotive Gear Oil SAE 80W-90 is a high-quality gear lubricant formulated from refined base oils and advanced sulfur-phosphorus extreme pressure additives. It provides strong protection against rust, corrosion, and wear across a wide temperature range and demanding service conditions. This gear oil is recommended for manual transmissions in passenger cars and on/off-road vehicles operating under high-speed/low-torque or low-speed/high-torque conditions. It is suitable for rear axle applications under light to medium duty requiring API GL-4 performance but not recommended for heavy-duty hypoid axles unless specified by the manufacturer.