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      10-11-2012, 01:27 PM   #9
Drives: AW 135i
Join Date: Aug 2012
Location: Waterford, Mi

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2008 BMW 135i  [2.83]
Originally Posted by FIRST1 View Post
^Thanks for the info!
That info's not 100% correct tho. Retarding the timing across the board makes the engine less efficient. The same amount of fuel is injected, it is just burned at a different, less efficient time. Equaling worse gas mileage.
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