Diesel vs gas for Class A....also length of RV....

When you get to 26,000 lb in a gasser the tranny ratio changes to handle the heavier load i.e. longer length. Of coarse mpg goes down. I think MHs in general are more expensive on the road. If I were going to FT I would probably buy a diesel. RVing 3 to 5 months we are fine with a gasser and 34'. I would look at both, then decide what is best for your RVing.