Most winches don’t require lubrication for the life of the winch, except in the case of a complete disassembly and repair. You should check with the manufacturer for details on the maintenance of your specific winch. If it is submerged in water or mud, however, we recommend disassembly, inspection, and cleaning with penetrating oil. The gears should be lubricated with high-pressure synthetic grease. This is also a good time to replace the winch cable.