Quote:
Originally Posted by trey100
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?
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F80 48,000 miles 19 mpg for me, mixed driving
X3mc 900 miles, 15.6 mpg same mixed driving