I've been running the BFG AT/KO 37 x 12.50 x 17's for almost a year. My on-board trip computer says 11.7 mpg and my own mileage check is 11.9 mpg. Figures out to almost 12.5 "real" mpg, but then, I drive conservatively. Noticed that I got about 1.5 mpg better fuel mileage in CO than TX...
-Randall Garrett-
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