Whatever it is, a blown head gasket, cracked head.......go 2 this site, it may save u money, either way, u will have 2 dish out an arm and a leg if u have 2 replace the gasket....cracked leak cure....
http://www.detsco.com/clc/
it will save u money, I am about 2 try it, my head just cracked, on my infiniti..thank god I have another car! But it's worth a try...hope this helps! oxoxoxSamantha