mhughett, my average mpg (no reset) over the past month and a half is 20.2 compared with an average mpg (again, no reset for about two and a half months) of 29.3 in the n54 based e92 335i i had last year. not too much difference in type of driving (60% highway, 40% city) but definitely gunning the sonorous high rev bands of the s54 much more.
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