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      09-17-2010, 06:42 PM   #33
John 070
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Drives: 335i cpe
Join Date: Oct 2006
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Originally Posted by msrothwell View Post
The EPA changed their testing system in 2008, and most car's mileage numbers went down. The N55 is more efficient than the n54 in your 2007.
The EPA changing its test has no effect on my mpgs. Yes, the N55 is more efficient than the N54, it's also more expensive to buy, cheaper to produce, and has standard equipment removed from the vehicle itself.
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