The dealer called me every step of the way and I'm glad I took it to Pro's Choice in Warsaw who has a Merc certified mechanic and is an award winning Merc service location. Had I taken it a marina on Lake of the Ozarks they might not have picked up the other problems which could lead to an even larger bull later. I;m not happy having to shell out that much dough but I am not unhappy with Pro's Choice. I am curious what causes head gaskets to go in general?