Chassis Grease
A heavy-duty, water-resistant grease used to lubricate chassis parts like ball joints, tie rod ends, and steering linkages.
Chassis grease is a specialized semi-solid lubricant designed for use on steering, suspension, and driveline joints that are exposed to the elements. Unlike thin engine oil, chassis grease is formulated with a soap or clay thickener (often lithium or calcium complex) that helps it cling to vertical metal surfaces and resist being washed away by road water, mud, and slush.
The grease is forced into grease fittings (zerks) on ball joints, tie rod ends, control arm bushings, slip yokes, and universal joints using a grease gun. Inside the joint, the grease forms a protective film that prevents metal-on-metal contact, dampens vibrations, and seals out dirt and moisture that would cause rapid abrasive wear and rust.
Chassis lubrication is a standard part of routine maintenance, especially on trucks and commercial vehicles. Using the correct type of grease—such as grease containing molybdenum disulfide (moly) for high-pressure applications—ensures the joints operate smoothly and last for their intended service life.