Our Full Synthetic GL-5 75w90 is formulated with limited-slip additives eliminating the need to add aftermarket. It is the ultimate gear oil providing maximum protection for all gear sets as well as helping to improve fuel economy while promoting longer gear life. This formulation is rated MT-1 and is excellent for manual transmissions requiring a GL-4 rated Synchromesh additive system.

Our Synthetic GL-5 75w90 is a 100% synthetic base oil product coupled with a robust additive system and improved viscosity modifier. It provides a high viscosity index low pour-point, reduced friction, fuel savings, better low-temperature start-up protection, and longer life than most conventional gear oils.

United Armour Full Synthetic GL-5 75w90 is formulated to meet the requirements of the American Petroleum Institute’s (API) Service Classification GL-5 and MT-1: MIL-PRF-2105E; SAE J-2360.