Toyota GL-4 75W-90 is a premium, factory-certified manual transmission gear oil specifically engineered to withstand the high-pressure conditions and precise frictional requirements of modern manual gearboxes. Developed using advanced additive technology and high-quality base oils, this lubricant delivers smooth gear engagement, reliable synchroniser performance, and consistent protection across a broad range of operating temperatures.

Its carefully balanced GL-4 formulation is designed to provide the ideal friction characteristics required for manual transmissions, helping to reduce gear wear, minimise transmission noise, and improve shifting comfort during both low-speed city driving and high-load highway operation. The 75W-90 viscosity grade ensures excellent cold-flow performance for easier gear changes during cold starts while maintaining a durable lubricating film under intense heat and heavy mechanical stress.

Toyota GL-4 75W-90 also offers strong resistance against oxidation, thermal breakdown, rust, and corrosion, helping extend transmission life and maintain long-term drivetrain efficiency. Suitable for a wide range of Toyota manual transmission systems, this gear oil supports dependable performance, smoother operation, and enhanced durability under demanding driving conditions.