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Old 01-01-2013, 10:00 PM   #2725
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Join Date: Aug 2012
Chapter/Region: SWIC
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2013 Impreza Spt cvt


Originally Posted by Rememo View Post
Th lack of ethanol is definitely part of the better mileage, but using the computer based mpg could be inaccurate.

Hand calculate the mileage a few times. I'll bet it drops a bit.
It seems there is an extreme minority that reports this much better mileage, except those following sgoldste01's rules. Maybe it's the no-ethanol mix, although jomofree must be using avgas, as Iowa and Minnesota both have ethanol in their gasoline, and I would guess avgas would give substantially better mpg.

On the whole, I am skeptical of the actual mpg, as to go from 400 miles at 39 mpg to a total of 42 mpg for the 750 miles means the 350 miles were at least 45 mpg, and at 75 mph...

Methinks calibration of the dash gauge is in order...
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