Long time no talk. Not to say its not running good but you do have smaller diameter tires and its not really recalibrated for it. So the computer is like calculating based on the higher mileage your odometer will show for the real good gas mileage. The best mileage I have ever pulled strictly highway was 30.0 on the dot. That's going "down hill" from Blacksburg, VA (2,200 ft) to Hampton(sea level exactly). I tend to do at least low 70's to 75 and the burst of course to higher speeds time to time.