U1P-Gear SAE 80W-140 Synthetic Gear Oil, API GL-5 is formulated with synthetic base oils and specialty performance additives to provide improved high-temperature thermal and oxidative stability in a wide range of operating conditions. Specialty anti-scuffing additives and friction modifiers provide advanced protection and lubricity in extreme pressure conditions. Additionally, U1P-Gear SAE 80W-140 Synthetic Gear Oil, API GL-5 is highly shear stable while also resisting rust, oxidation, foaming, and varnish. U1P-Gear SAE 80W-140 Synthetic Gear Oil, API GL-5 is designed for use in all seasons and exceed the year-around, all-weather performance viscosity requirements of SAE J306 as well as the rigorous performance requirements of API GL-5 and MT-1. API Category GL-5 designates the type of service characteristic of gears, particularly hypoids in automotive axles under high-speed and/or low-speed, high-torque conditions.