1999-2009 [Subscribe to Daily Digest] |
SAAB dealers have until fairly recently been using the semi synt if I did not specifically ask for or approve the more expensive full synt. Could the use of semi synt have anyting to do with the sludge problem ? Now they say use only full synthetic oil ! I for my sake have been bringing M1 0W-40 with me to the dealer for the last year.
posted by 213.64.224...
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