I've been monitoring the gas mileage since I got my Ultra and on any bike I always reset the trip at fill up. The low fuel light came on at 205.3 miles and we did 223.1 miles before stopping for gas back home. She swallowed 5.124 gallons at the pump so that tells me I had more than the 16 miles left on the countdown that started at "r48" - you know how the display changes to remaining fuel instead of trip odo when the low fuel light comes on. Impressive mpg two up at 43.5 mpg, almost as good as my sporty. I have stock intake-air cleaner and LAC slip on mufflers. The route we took was a mix of back roads, U.S. Rt. 7 from Northern CT through the Berkshires to Ma. Rt 2 - Mohawk Trail. A nice mix of speeds and elevations. We never did fly above 65 mph on the open stretches of U.S. 7 with all the LEO's out for the holiday weekend.