75W-90 GL5 is a semi-synthetic gear oil formulated with high-quality synthetic and mineral base oils. It contains additives that provide high pressure resistance, prevent oxidation of the oil, protect the materials from rust, and reduce wear. It is specifically developed for heavy-duty conditions in differential, manual transmission, and hypoid gears. It is designed for equipment with hypoid gears operating under high speed/impact loads, high speed/low torque, and/or low speed/high torque conditions. It is suitable for use in heavy-duty axles and final drive axles that require API GL-5 level performance, light and heavy-duty trucks, commercial vehicles, and industrial, commercial, and automotive applications with gears operating under medium to heavy working conditions.