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      11-10-2012, 07:28 AM   #12
Major General

Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

iTrader: (3)

Originally Posted by e92involved View Post

Probably the most surprising part about this kit for me was the MPG. I have a 45 mile commute each day and when I drive this car at an 80 mph cruise I achieve 30 mpg! I couldn't believe it at first, then I tested it manually at it was dead on. Obviously, when you dig in the gas pedal itís less but I still get an average of about 26-28mpg all the time!
That would probably be world record for mpg on an E90M3. On some cars, onboard computers are no longer accurate when larger injectors are fitted. I know you say you also did a manual calculation of the fuel, but I would do another test or two since these numbers are so far outside of what anyone else has ever reported.