Lubricants reduce friction, wear, and overheating in mechanical equipment by preventing surfaces from rubbing against each other. These fluids can be applied to parts such as wheels or hinges to coat them with a slippery film that reduces friction between surfaces and helps them move more smoothly. This extends the life of machinery by protecting moving parts. Some lubricants are specially formulated, such as chainsaw, belt dressing, cable and wire pulling, chain and wire rope, chute, electrical, inner slide, trolley, and sugar-dissolving lubricants. General purpose lubricants are suitable for reducing friction, wear, and squeaking in a variety of applications.