Thats strange. I have "heard" of Trackers getting 30mpg... but have NEVER come close in any of mine.
It is strange that the heavier 4 doors seem to get the best of all (25-27)
It's gotta be gearing. My Flea, at 4000 RPM on the highway is lucky to break 22.....
Never checked the Turtle... it goes about 2 days per tank..... LOL, not too many miles... that is all trail mileage.
I am sure the 4 speed autos, and 5 speed manuals do MUCH better than the 3 speed auto in the flea, cause even with just 235's... I am running some rpm's ALL THE TIME.... I get 160 to a tank, about 20mpg average in it, combined city/hwy.... of course I am pretty sure the torque converter isn't locking up either... gotta to get around to that someday.