Technologically advanced formula increases horsepower and delivers superior anti-wear and extreme pressure protection from peak loads and elevated temperatures., Surface active chemistry delivers ultra-high film adhesion on gear faces, enabling higher load carrying capability and protecting critical gear interface areas and contact points., Fully formulated additive system contains anti-foam, rust, corrosion and oxidation protection for high-stress conditions., Pro Gear is recommended for use in front and rear differentials, manual transmissions and lower gear units of marine engines or anywhere an API GL-5 gear oil is specified., Pro Gear oil is formulated with friction modifiers and is safe for use in hypoid gear systems.