I know i know this is a grand prix forums but I figured this would still be the best place to ask...

My girlfriends 97 escort's oil looks like a milkshake and im 99% sure its a head gasket issue. The car isn't worth very much and has high miles. Shes in the market for a new car but still needs to run this one for awhile. Instead of spending the time and/or money to properly repair the gasket i'm looking for a cheap and quick solution to get a little more life outta it. I'm reading about these additives that supposidly can fix a blown gasket or warped head but I'm leary about it. Anyone have suggestions on such a "band-aid" product?