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      07-19-2010, 06:35 AM   #31
Ti Rich
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Drives: BMW 330D M-Sport F30
Join Date: Jan 2008
Location: Dudley, West Midlands, UK

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You really need to manually check the MPG as tuning boxes effect the way the MPG is calculated by the ECU. Chances are the MPG will be worse when ypou manually calculate it.
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F30 330d M-Sport S-Drive