I am going through coolant like crazy...probably a gallon a week...it's not going on the ground. I can see it's a little wet where the elbows are and I plan to change them, but my God it's gotta be something else. Head gasket? has anyone ever changed theirs? is it possible to do on your own? after the engine is running for 7 minutes the heat sky rockets to 235-240 degrees, yet the radiator cap is relatively cool to the touch and the upper radiator hose isn't unusually hot.