I looked at a late 80's GMC with the 350 motor. I unscrewed the oil cap and ran my finger under the cover to check for sludge. A little came out, but the oil smelled sweet. The odometer says 125k.
Is there an additive out there that will cause the oil to smell like that? Possibly to cover up a problem?
Is there an additive out there that will cause the oil to smell like that? Possibly to cover up a problem?