If that is with a completely empty and completely refilled E53 fuel tank, you might want to check your math.


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But for the purpose of this thread:

I returned yesterday from a long weekend with my family and could not fill up before some local meetings. This affords us- at the expense of my nerves as I pulled in on fumes- the opportunity to do some math with photographic proof. Here we have an absolutely EMPTY X5 tank, the gallons to fill it, and the odometer reading for our calculations from today:

Syooo the math:
438miles on 25.5gallons: 17.18MPG

Zero miles till empty and 438 miles:


25.5 Gallons (@$84! ):


This was the odometer from the other day as I quickly snapped a 16K mile pic. I would estimate that ~125miles of this tank was city driving.

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