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      12-05-2012, 04:43 PM   #7
Drives: 135i
Join Date: May 2012
Location: Florida

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Originally Posted by gmane View Post
Does it affect regular daily driving? Do you see a change in gas mileage if you're doing normal highway driving
You are going to take a hit in gas mileage no matter what if you plan to add in some E85. The performance benefit is worth it though.
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