U1P-Gear SAE 75W-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, Ultra1Plus Synthetic Limited Slip Gear Oils are highly shear stable while also resisting rust, oxidation, foaming, and varnish. U1P-Gear SAE 75W-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.