I have a 2007 Pilot with 204000 miles. In the past year, I've have 2 radiators that have gone bad. The mechanic that replaced them eventually did additional testing and said I have a bad head gasket and it is causing too much pressure in the radiator and that's why they're going bad. I went to a Honda dealer for a second opinion a month ago and they didn't see any indication of a bad head gasket, but now my radiator is leaking again (3rd one in the past 9 months). Anyone with any suggestion on what might be the issue? Does a head gasket make sense? My vehicle has not overheated at all, but have notice coolant sprayed around under the hood.