We have a 2014 c class freedom elite 28z that we just took out to Yellowstone from Al. We are new to rv camping but in the last year we have spent a week in key west Fl. and two weeks in yellowston...
Even with our 25 year old C we managed 11mpg, didn't lose much upgrading to the Class A. Don't understand 5.5mpg unless you're trying to maintain highway speed of 65 or 70 mph. In some stretches of Utah, it's 80mph - now THAT'S scary!