Fifth wheel mileage question
Fiver owners, not trying to start a debate, but wanted some data to think about. I have a 2017 f350 Dually diesel and I am looking at fivers in the 30-35’ range but the weights vary quite a lot I’ve ...
Forum Discussion
Speaking from over 44,000 miles towing fifth wheels with diesels: on the flats, once you get it rolling, it's wind resistance (think pulling three sheets of plywood through the air at highway speeds); in the mountains, weight really comes into play. Significant headwinds or tailwinds and all the above go out the window. When we upgraded our rig 2-1/2 years ago, the GVWR (and actual weight) of the trailer increased from 13K to 15K lbs. Overall there was about a 1.5 MPG difference coast-to-coast in all kinds of conditions. With both trailers, I saw mileage as low as 4.5 MPH (45 MPH headwinds)/8 MPG (6% grades) and as high as 15 MPG (45 MPH tailwind in the Central Valley in CA). Bottom line is, it just depends.
On the other hand, not many people buy large RVs and worry about fuel mileage.
Rob
On the other hand, not many people buy large RVs and worry about fuel mileage.
Rob
