I'm wondering if my mpg will improve as the mileage on engine increases? My 31' weighs in at 13986. It's a 2011 with 7000 miles on it now. The best mpg so far has been 7.6. Babying it from Maine to C...
We get around 9.5 to 10.5 MPG cruising at 55-58 MPH with our E450 on only a 24 foot motorhome.
I run oversize tires to help get this mileage. Tires with a larger diameter lower the overall E450's gearing ratio so that overdrive is more effective (and we also gain some added ground clearance).