Lube King, 2 gallon, 80W90 gear oil, hydro treated, high viscosity index, paraffinic base oils, rigorously tested additive system to deliver unsurpassed protection & performance, protection against spalling & other wear, especially under extreme heat, pressure & torque operation, ensures long equipment life, maintains viscosity, resulting in longer fluid life & reduced operating costs & extra resistance to thermal degradation, protection against oxidation & deposit formation & significantly prolongs seal life.