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      05-09-2012, 02:05 PM   #4
1speedbike's Avatar

Drives: 2008 BMW 135i
Join Date: Jun 2008
Location: NJ, NYC, Baltimore

iTrader: (15)

Nobody bothered to dyno map 8? I mean, I guess I can't complain since I'm not going out and doing it either.

BUT I brought the car to the dealership today and noticed this after taking a pic of my mileage:

This is AFTER I began noticing that my fuel economy was dropping into the 18's likely due to carbon buildup from my previous 20-21 mpg with mixed driving. I had reset the mpg calculator about a week ago and have since been driving with the turbos both on and off, same driving style as always. I forgot that I even bothered with the mpg calculator until I noticed this pretty big bump! Would be cool to know how much power is lower in exchange for the economy. Pretty nice.

Year 1 of the 1