Quicksilver Extreme Performance Gear Lube was designed for outboard and sterndrive racing applications. Recommended for use in high?performance gearcases used in marine, powersports, and motorsports applications.Provides maximum protection against: Water intrusion - advanced emulsifiers protect gears if water enters the gear housingWear - tackifiers and pressure additives improve oil film adhesion and protect against excessive wearHorsepower loss - prevents horsepower loss and won't break down when gears reach high temperatures Sold in case packs only.