Prepares potential wear surface and prevents metal contact before adequate lubrication can be supplied• Unlike other assembly lubes, Red Line will not plug filters after initial engine start-up• Provides 3x greater film strength than conventional black Molybdenum Disulfide greases• For use on camshafts, lifters, pushrods, piston skirts, main and rod bearings, and bolt threads• Do not use on exhaust bolts or other high temperature bolts which require an anti-seize