Gonzo42 wrote:
Our first RV, the Winnie View. Very reliable, gets 15 MPG @65 MPH.....
Gonzo42, not intending to talk you down, but I could say without stretching the truth that our 2007 Phoenix Cruiser built on a 2007 E350 chassis with V10 engine gets 12.5 MPG @65 MPH (when not towing) but such a declaration doesn't reflect a practical figure. Our "trip average" calculation is 10.5 MPG.
The engine, trans, and the rest of the chassis have been 100% trouble free.
Maintenance for us in 12+ years are just do-it-myself oil and various filter changes. In year 2020 with 40,000 miles on the chassis, I am planning on our first set of replacement tires, a brake system flush, trans fluid & filter change,and other preventative maintenance. I have the means of doing it all myself so it will all be only cost of material.
Back when our rig was new, I did initially invest in heavy duty front and rear stabilizer bars, a rear trac bar, a heavy duty steering stabilizer, and RV shocks. Last year I replaced the Koni-RV shocks (the old type red ones) with heavy duty Bilsteins. So I've had my up-front investment in getting the rig to handle to our liking, and a second set of fresh shocks more recently.
Our 2007 Ford E350 chassis with V10 engine has been the right economic choice for us. I don't see any reason to feel any different about the Chevy 3500 and 4500 chassis. But the MB Sprinter scares me. The improvement in fuel economy seems to be over-shadowed by the extensive cost of maintenance, sensitivities, and MB repair facilities.