Swapped out my 175,000 mile 986 Mistress for a newer, younger 2006 S with 25,000 miles. Changed oil, this is the report on the existing oil. The owner stated he had changed the oil at 22,000 miles, so 3,000 miles on the Mobil One. Ironically, the last report on my 986 from Blackstone stated it was one of the best wearing 2.7's they have seen.
Thoughts? Thanks!
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THOMAS: Universal averages show typical wear after about 3,800 miles of oil use. Your sample has quite
a bit more metal than we typically see. Aluminum, iron, copper, and lead show wear at the pistons, steel,
brass/bronze parts, and the bearings. Tin is probably an alloy. There wasn't any contamination to explain
this, so maybe this engine used to see some pretty hard use. We're not convinced of a problem, so let's just
see how trends build before crossing that bridge. Use 2,000 miles next time and watch oil pressure if you
can. Hopefully things shape up a bit next time.
