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Old 10-09-2009, 03:38 AM
Craig B Craig B is offline
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Location: MO
Join Date: Jan 2008
Posts: 613
Mein Auto: 2009 X5 35d 2007 Lexus LS
It says on the gas cap not to use any additives, so if I were you, I wouldn't want to void my warranty. I run premium diesel fuel and don't have any problems...

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