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Brucelee · 10-17-2007, 09:51 AM

In the OLD days (1997-1999) Porsche used to recommend M1 15-50W. They changed later on to M1 0-40 Euro oil.

To me, unless you are racing or live in the extreme heat of say, AZ in summer, the 5-40 or 0-40 should be fine.

I have used 15-50 in some of my 911s if I had it in stock.

No worries, I think.

10-17-2007, 09:51 AM	#7
Brucelee Registered User Join Date: Jun 2004 Location: Des Moines, IA Posts: 8,083	In the OLD days (1997-1999) Porsche used to recommend M1 15-50W. They changed later on to M1 0-40 Euro oil. To me, unless you are racing or live in the extreme heat of say, AZ in summer, the 5-40 or 0-40 should be fine. I have used 15-50 in some of my 911s if I had it in stock. No worries, I think. __________________ Rich Belloff