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Flavor 987S · 10-23-2009, 05:53 AM

You should not be using a 10W40 oil. Not Porsche approved. Especially during a Chicago winter.

10-23-2009, 05:53 AM	#7
Flavor 987S Registered User Join Date: Jul 2009 Location: Arlington Heights, IL Posts: 1,561	You should not be using a 10W40 oil. Not Porsche approved. Especially during a Chicago winter.