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softroop · 07-08-2009, 09:39 AM

Here's a question for the forum: If a brand/grade of oil was on a previous Porsche Approved Oil list (TSB), but is not on the current list, should it not be used solely because it's no longer on the approved list?

07-08-2009, 09:39 AM	#1
softroop Registered User Join Date: Apr 2008 Location: Montgomery, Alabama Posts: 14	Porsche Approved Oil List Here's a question for the forum: If a brand/grade of oil was on a previous Porsche Approved Oil list (TSB), but is not on the current list, should it not be used solely because it's no longer on the approved list?