Gunk Bearin' Seal 12 fl. oz. M1616

Stops leaks in front and rear main bearing Stops leaks in head gaskets Stops leaks in timing chain covers Starts sealing immediately Stops minor oil leaks in front and rear main bearing seals, head gaskets and timing chain covers. Will not harm engine parts. Starts sealing action immediately. Functions by impregnating and swelling gasket material which will in turn, stop minor leaks created by wear and overheating. Mixes well with all regular and synthetic motor oils.