Possible purchase of Winnebago Vectra
We are brand new to this forum and need advice ASAP. We now have a fifth wheel and are considering buying a 2007 Winnebago Vectra 40FD. The price is great and it's from a reputable dealer with a 30 day warranty. It has a 400hp Cummins engine. Any guess as to what gas mileage we might get? That's a lot of horses to feed, but the dealer says it will not be less than most get because it will be running at a lower RPM. It seems like a deal we can't pass up, but it's a little scary to part with that much money, so any advice anyone can give me on the model, engine, etc. would be very much appreciated. Thanks!