Mag 1, QT, 75W90 Full Synthetic Gear Oil, Provides Superior Gear Protection For A Wide Variety Of Applications Including Hypoid Gears, Manual Transmissions, Gear Boxes, Passenger Car & Light Truck Conventional Differentials, Transmissions & Steering Gears, API Gl-5 & MT-1, Mack Go-J, SAE J2360, Limited Slip, Formulated With Synthetic Base Oils, Premium Extreme Pressure Additives, Rust Preventatives & Anit Foam Agents.