Valvoline, QT, 85W140, Gear Oil, High Performance, High Quality, Keeps Your Vehicle Running In Great Condition & Avoid Loss Of Corrosion Protection, Reduced Chattering In Limited Slip Differentials, Protects Against Gear Teeth Pitting & Scouring, Provides Outstanding Thermal Stability For Cleanliness & Longer Service Life, All Hypoid Differentials & Manual Transmissions In Passenger Cars, Light Trucks, Sport Utility Vehicles, Vans & Heavy Duty Trucks Where An Api-Gl5 Or Mt-1 Fluid Is Specified.