I purchased a Fram oil filter for my '91 20v 200 Quattro Turbo. It fits, is cheap, and is the correct Fram part #. The dealer, however, says don't use anything but the Audi filter (at 10 times the price). Is this good advice? Is the Audi filter gold plated. Does it matter? Lynne Gronback alkdjf lkajdhf lkajdhf