DrewE wrote:
The main chassis supplier for gas class A motorhomes is Ford, and they don't offer a diesel version.
I rather doubt there would be as much of a performance difference between the gas and the diesel version if they did offer one as some here would assume. It's unlikely that the diesel would be a lot more powerful, though it would presumably run at a lower RPM (and, of course, have a higher torque at that RPM to get the same power) and so sound different. Being turbocharged, it would also not lose power at altitude to anywhere near the degree that the normally aspirated gas engines do. On the other hand, the diesel would likely weigh more.
In my opinion, the main advantages of rear engine diesel motorhomes have little if anything to do with the diesel part and a great deal more to do with the rear engine (and air suspension/brake) parts. One might equally well ask why rear engine gas motorhomes are so rare.
On the bold, I could not disagree more. Go hook up a 10,000 lb trailer to a gas Super Duty and take it for a test drive. Now hook up that same trailer to a Super Duty diesel do another test ride. Get back to us on if you still think there wouldn't be much of a performance gain.
I can save you the trouble if you'd like. I always had gas trucks. One day my gasser was in the shop so the gave me a diesel as a loaner. Shortly thereafter I owned my first diesel truck. That was 3 trucks ago, I'm still buying diesels.
I'm with the OP on this one, I have often wondered why Ford wouldn't drop the Power Stroke in a MH chassis. I honestly think a lot of people are a bit scared/shy about owning a diesel.