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Perhaps the material has been properly changed to a Fluorosilicone rubber (normally bluish), which is compatible with fuel and oil vs. silicone rubber (reddish), which is not?
I think I see a new GB inspired pan gasket to better all pan gaskets.
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."