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      11-02-2010, 02:54 AM   #12
SuiDO
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Drives: BMW
Join Date: Mar 2010
Location: HK

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Quote:
Originally Posted by car_fan View Post
Your gas mileage should improve once the engine starts to break in. Be glad you have X drive, because if you unleash the fury of 450 lbs/ft of torque you are going to be glad you have the extra traction. Truth be told the RWD versions are capable of putting the power down as well

I can't figure out why gas mileage would be lowered after break-in. Anybody enlighten me the technical reasons behind.
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