Been lurking in for awhile now. Great forum
Have a question. 1996 Lumina w/3.1 It has oil in the water, an oily residue in the neck of the radiator, no visable external leaks & runs great.Intake or head gasket? Mechanic say head gasket but he did not perform a leak test. Said a compression test was inconclusive. Any tests I should try?
Thanks in advance