Editorial Review Engineered to provide maximum protection for sterndrive and Outboard lower units. Exclusive formula is engineered to provide extended gear life in extreme conditions including high-speed and high-horsepower applications. Extensively tested to provide excellent protection against corrosion and excessive wear. Specifically formulated to help prevent failures due to water entering the gear housing. Extreme pressure synthetic additives protect gears from metal to metal contact. Since no industry-wide standards exist concerning marine gear oils, it is essential to use products such as Mercury high-performance gear Lube which has been specifically designed and tested for marine applications. Note: do not mix with Mercury premium gear Lube. Provides warranty protection for all Mercury mercruiser sterndrive and Mercury, Mariner and force Outboard lower units. Mercury recommend the gear Lube be changed at least once per year (prior to storage) or every 100 hours of operation. See your owner's manual for specific recommendations.
Features 1) Water intrusion - advanced emulsifiers prevent foaming to protect gears if water enters gear housing 2) Wear - tackifiers and extreme pressure additives improve oil film adhesion and protect against Excessive wear 3) For use in all outboard lower units, jet pumps, and Sport JETS and all Mercury mercruiser sterndrives 4) Meets API gl-4