JEGS Engine Assembly Lube is a heavy-duty pre-lubricant designed for gasoline and diesel engines and compatible with all motor oil. Its tacky lubricating film forms a protective coating during assembly. The lube is fortified with zinc and other extreme pressure additives to sustain anti-scuffing, anti-galling, and wear-in properties during the critical break-in period. Ideal for bearings, camshafts, crankshafts, rocker arms, and other internal components. .