Hey,
my Grand Prix 2006 is leaking coolant very fast without any obvious leaking spots. Whole coolant reservoir gets empty in about 30 miles. Some time ago I also noticed the oil consumption is rising up (cca 1 quarter of oil on 1500 miles).
I am afraid its the head gasket. Does anyone here have experience with the replacement? I wasnt able to find any tutorial video how to do that for this car.
Thanks for any tips!