I had a 3600 lbs 2.9 Ranger XLT pulling a 5600 lbs 5th wheel and got barely 11.5 mpg US on freeway driving and 16 on country roads.
Now I have a 7800 lbs turbo diesel truck pulling a 15500 lbs 5th wheel and getting the very same mileage.
The gas truck needed 89 octane or better for clean burn and any power. And to me the fuel cost is about the same.
Both trucks are standard.
My diesel has over 220k kilometers and paid for like the Ranger was, but I still trust it, but the gas I got rid of it at 150k worried about the engine and transmission.
Any old diesel for me is great compared to a new gas. And I buy used and do my repairs. All my diesels have served me well though they were the worst GMs and now the worst Ford.
Used the XLs are a great bargain and the drive train quality stays the same.
This one is my 4th plain Jane out of 5 and now has more added practical optional items that still works well then the loaded previous GM.
Why pay $7000 for a backup camera system while a $69 camera setup in a $200 GPS in dash deck can be installed and still works fine after 8 years. The previous GM CD broke down after playing the 3rd CD. The chrome grill for $100, while keeping the black grill for winter grill cover and plowing snow. No chrome grill will do for this application. Remember Ford builds XLs to last when working hard, and the others are for show.
Barbara and Laurent, Hartland Big Country 3500RL. 39 ft long and 15500 GVW.
2005 Ford F250 SD, XL F250 4x4, Long Box, 6.0L Diesel, 6 Speed Stick, Hypertech Max Energy for Fuel mileage of 21 MPusG empty, 12.6 MPusG pulling the BC. ScangaugeII for display..