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      03-22-2020, 09:17 PM   #28
trey100
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Drives: 2020 M2 Competition
Join Date: Jul 2007
Location: New York

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Quote:
Originally Posted by dkhm3 View Post
Quote:
Originally Posted by trey100 View Post
Wow - those are horrendous. I know the S58 is not the B58 in the X3 M40, but this has to be 10+ mpg worse. I average 23 on my F80 6MT commuting about 80% highway, 20% suburban side roads. Anyone come from an F80 that knows the difference they're seeing with their X3 M?
F80 48,000 miles 19 mpg for me, mixed driving

X3mc 900 miles, 15.6 mpg same mixed driving
Thanks. Helpful. 3.5 mpg is reasonable considering this weight 1,000 lbs more and has more HP.
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