Clean oil is essential in reducing friction and preventing damage to internal components, providing many years of engine life. Engineered for sterndrive and outboard lower units, this High Performance SAE 90 gear lube has been extensively tested to ensure impressive protection against corrosion and wear. Specifically formulated to help prevent failures due to water entering the gear housing. Lower unit gear oil formulated to protect against corrosion and excessive wear Designed for outboard motor lower unit and sterndrive applications above 75hp Extreme pressure synthetic additives protect gears from metal to metal contact SAE 90 viscosity Manufacturer part number 802851Q02