The Blue Devil Head Gasket Sealant seals cooling system leaks to help prevent blown head gaskets, warped and cracked heads, heater cores and freezer plugs. Installation takes about an hour, the ...

Brian Cooley is CNET's Editor at large and has been with the brand since 1995. He currently focuses on electrification of vehicles but also follows the big trends in smart home, digital healthcare, 5G ...