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...
You will not be happy with the MPG pulling with a F150/3.5 Ecoboost. I got as low as 8.5 pulling an Ultra-Lite 4500 GVWR trailer. You should go for the diesel.