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Old 09-10-2006, 02:47 PM   #1
tonyg
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Join Date: Aug 2005
Location: Florida
Posts: 47
Which gas to use?

My service manager recommended BP, Chevron, or Shell, for better performance from my Boxster. Something to do with additives that these companies add to the gas. BTW same recommendations from Audi service manager for my wife's new A4 Quattro!!! Anything to it?
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