Quicksilver SAE 85W90 Extreme Performance Gear Lube 92-8M0111677 Quicksilver 85W90 Extreme Performance Gear Lube was designed for outboard and sterndrive racing applications. This gear lube provides maximum protection against water intrusion, wear, and horsepower loss. Advanced emulsifiers protect engine gears if water enters the gear housing. Tackifiers and pressure additives improve oil film adhesion and protect against excessive wear. This gear lube also prevents horsepower loss and wont brea