We have a chevy 25 footer class c..Jayco Escapade...get 10 mpg. Hubby takes it easy for better mileage. Hills won't be as good.
2005 is the year. I would say get something other than a Jayco...their standards are a bit low. The sealing at the seams on ours was rather poor and thus we got leaks which we have now fixed
correctly with Eternabond. We have had it for a few years and will
keep it and run it until it has too many miles on it...semi/quasi retired early.
We had to buy new tires as they were the originals...fix the seam seals, reseal other areas to prevent leaks, hubby is adding an additional battery/house, and he added an additional tank. We prefer to boondock as we have spent enough on the unit; peace and quiet, picture perfect spots.
Hubby sleeps in the over cab and I sleep in the corner bed so we have room (king sized bed at home).
Be really warey of watching for leaks, delamination...C's seem to get those more than other types. Our former unit was a 20 foot travel trailer.