I have a 05 Equinox and at 7000 miles we smelled a dead mouse smell in the antifreeze during an oil change. We brought it back to the dealer and they said the "wrong" anti freeze was put in at the factory. So the flushed the system and put all new hoses on. We thought the problem was over until at 65000 it over heated. We brought it back and the head gasket was bad. They claimed the bad antifreeze did not ruin the gasket. So I had the new head gasket and new brakes for $2900.00. So watch out for the dead mouse smell!!!