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      02-25-2013, 10:35 AM   #25
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Drives: 335d Carbon Generator
Join Date: Jan 2013
Location: Chicago

Posts: 39
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How does the speedometer effect this? My speedo reads a solid 5% high at every speed with my stock 17" wheels. I guessed the computer was calibrated for 16" wheels, making the odometer and MPG also read as low. Anyone else notice this?

My 35.8 mpg should actually be 37.6. I'll sign up for Fuelly and verify.
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