Question about 1999 Cadillac DeVille
It seems to have good compression but smokes and burns oil could this be a blown head gskt in the oil passage to the head.i have allways been a gm fan and have preached buy american all my life but if the top of the line gm cars can just barely out run the warranty i m having second thoughts.
Could be a piston ring ...valve guides worn...depends on the miles.
or pcv valve plugged up
how much oil does it burn,could try marval mystery oil put it in the tank....car quest...
Posted on Dec 21, 2008
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Posted on Jan 02, 2017
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