I started using the Fuelly app and my MPG was horrible which led me to change the T-stat. First week after changing out the T-stat the X5's MPG computer bumped up to 24.5. Mix of daily local and weekend highways. Coolant temp also went from average 165f-170f to 185f-195f. Still on the same tank so at the next fill up i'll see my actual mileage in this tank.
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E70 LCI 35D
Sutphin trans tune///xDelete///What EGR?
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