GM 8.1 Fix
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Join Date: Feb 2001
Location: Bowleys Quarters, Maryland
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GM 8.1 Fix
Looks like there is finally a true factory fix to the 8.1 excessive oil use issue. Just left my local GM dealer during a normal interval service. He indicated that there is a new bulletin just issued that replaces, under warranty, the "PCV" valve with a redesigned valve. Seems this was determined to be the cause of the oil usage. Sure hope this ends the long saga over oil usage. I was unable to get the bulletin number, the guy was out at lunch during the time I was there. If any body comes across the number let us all know!