We just traded in two m-h's & bought a new Winnebago Vista 30T with a Ford V-10. We traded in an 05 Bigfoot 24DB with a V-10 & when pulling our 09 Jeep Wrangler we got about 8.5 mpg's. Not pulling we got 9.1. The other m-h we traded in was a 37 ft. 02 Gulfstream with a GM Workhorse chassis & surprisingly it got 10mpg not towing. I'll be glad to get 8mpg with the new Vista 30T.