I was hopeful that my mileage would increase with the warmer weather, but was disappointed to get "only" 21.7 mpg out of my last tank. However, yesterday I drove from Bentonville, Arkansas to Joplin, Missouri - about 120 miles round-trip. At the end of the first leg of the trip (downhill) the EVIC was showing 26.3 mpg; by the time I had driven back up the mountains to get home, my mileage had dropped to 24.6 mpg.
Sure, I wish it were better, but one of my buddies owns a Liberty, and he would give anything to get over 18 mpg. In almost six months, I've put only 5,600 miles on the odometer...but I don't expect any dramatic improvements with more miles on the clock. Unlike the old days, engines in new cars no longer seem to "loosen up" after 5,000 to 10,000 miles of driving.