Critical Engine Break-In Protection Recommended by leading camshaft manufacturers, this unique extreme pressure lube dissolves completely in oil without clogging oil passageways or plugging oil filters. Proven to cling to and protect surfaces during initial start-up, Driven Engine Assembly Grease delivers protection you can count on. Apply to cams and lifters for break-in protection. It can also be used on distributor gears, rocker shafts, rocker tips, pushrod tips, wrist pins and valve guides. Combined with BR series break-in oils provides proven protection during break-in.Joe Gibbs Racing DRIVEN 00734 Engine Assembly Grease (1 Packet)