I own a 2004 Forest River Lexington 270 with a Ford 6.8L V10 engine. I would like to know how I can improve gas mileage. I am from VA and I have been cruising at 60 mph everywhere I have been with the Lexington. The best gas mileage I have gotten is 8.5 mpg and the worst is 6.5 mpg.
I recently tried to cruise at 57 and mileage improved back to the 8.5 mpg. I am also a professional bowler that uses the motorhome more often than others. Other pro bowlers with RVs have told me that they get 10-12 mpg, but they also use V8 engines. I really need help with getting better gas mileage. All help is appreciated. Thank you very much.