Well I had some pretty good success, my omaha to waterloo to chicago to Omaha trip had some pretty good FE #'s.
I take this trip every other month and usually average 38 on the first part, then 40 on the second really flat slightly slower leg, then 35 into chicago back to Iowa, then 38 on the way home.
This time omaha to waterloo was 42, waterloo to dubuque was 50 dubuque to chicago and back to iowa was 40, and back to Omaha was 42 again.
Air dam really helped. I drive the speed limit or 5 over. I don't have the patience to make a 1,000 mile trip at 45-55mph.
