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Old 06-07-2013, 06:28 PM   #13 (permalink)
UFO
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Join Date: Sep 2010
Location: Denver, CO
Posts: 1,300

Colorado - '17 Chevrolet Colorado 4x4 LT
90 day: 23.07 mpg (US)
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I use a scangauge II. It becomes way off (from 2 to 15 mpg wrong over a tank) if I implement my EGR delete, go on a road trip, change biodiesel concentration, or make any significant change in driving technique.

Fortunately, I can calibrate it for B100, no EGR, and with my driving techniques fairly settled it is a useful tool for monitoring my daily commute over a tank, including some non-commuting driving over the weekends. I can make seasonable adjustments to maintain reasonable accuracy from spring to fall with B100 fuel.

Yeah, it'd be nice to have real fuel flow measurement.
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