Extreme Performance Gear Lube 8M011677 is 85W90 weight for use in outboard and sterndrive racing applications. Also for use in high‑performance gearcases used in marine, powersports, and motorsports applications. Provides maximum protection against wear. Its tackifiers and pressure additives improve oil film adhesion and protect against excessive wear. Helps prevent horsepower loss and won’t break down when gears reach high temperatures. Advanced emulsifiers protect gears if water enters the gear housing. Should be changed once each year when winterizing the engine or every 100 hours of operation.