Hi All! Pretty serious about changing from Class C motorhome to Truck-trailer combo, due to overall costs associated with driving it. The biggest trailer we're looking at is about 8,000 dry & 10,400...
I get about 10 mpg with my current combo (trailer weight is 3500# loaded). With my previous combo (2014 Ram 2500 6.4L Hemi and a 12k, 37' triple slide out 5er) I got 7-9 mpg, usually 8 ish mpg. GCW was 21k for that set up.