Castrol Transmax Universal LL 75W-90 with Smooth Drive Technology is a fully synthetic multi-grade lubricant designed for universal use in synchronized manual transmissions and axle drives requiring API GL-4 or GL-5 specifications. It can be used in a wide range of vehicles, including commercial vehicles, construction machinery, and passenger cars. Castrol Transmax Universal LL 75W-90 is versatile, simplifying inventory management and reducing the risk of misfills.