Lewmar GearGrease Winch Grease This Lewmar GearGrease Winch Grease features waterproof solid activation to aid load-carrying characteristics of a winch. The 3.5 oz plastic tube of complex calcium sulfonate-based grease is used to protect the interior mechanisms of a winch from freshwater condensation and salt water corrosion. It is recommended for the lubrication of winches, windlasses, steering gears, bearings, trailer wheel bearings, hydraulic equipment, outboard engines and many other marine