75W90 Synthetic Rear End Oil Qt. Valvoline

The 75W90 Synthetic Rear End Oil Qt. by Valvoline is designed specifically for differential and limited-slip rear end assemblies in high-performance and heavy-duty vehicles. This synthetic formulation is ideal for mechanics and enthusiasts who require reliable protection under extreme load conditions, whether for stock trucks, towing heavy trailers, or modified differentials on the street or track.

This product features a 75W90 weight grade that provides optimal film strength and gear protection across a wide temperature range. It is engineered to prevent wear on hypoid gearsets while ensuring smooth operation during cold starts and high-speed driving. Valvoline's synthetic base stock is known for its resistance to thermal breakdown and shear, which helps extend drain intervals and offers protection against rust and corrosion inside the housing.

This oil is suitable for truck owners, off-road builders, street performance enthusiasts, and mechanics performing routine maintenance or differential rebuilds. It is important to verify your vehicle's factory specifications or consult your owner's manual to confirm compatibility with 75W90 oil, as many modern differentials require this specific viscosity.