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Old 09-20-2012, 12:21 PM
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kanar200 kanar200 is offline
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Location: CA
Join Date: Feb 2011
Posts: 1,055
Mein Auto: was 530d, is X5d 2011
I do not believe the economy difference results entirely from the weight difference. BMW diesel is simply better than Audi diesel. It has better economy despite BMW is bi-turbo vs Audi single-turbo.

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