Valvoline 85W-140 High Performance Gear Oil Oil-1qt (VV825), 32. Fluid_Ounces Valvoline high performance gear oil is a high quality Lubricant to keep your vehicle running in great condition and avoid loss of corrosion protection. Reduced chattering in limited-slip differentials. Protects against gear teeth pitting and scouring. Provides outstanding thermal stability for cleanliness and longer service life. All hypoid differentials and manual transmissions in passenger cars, light trucks, Sport utility vehicles, vans and heavy-duty trucks where an api-gl5 or mt-1 fluid is specified.