bad
9to11mpg highway
About 10 to 14 mpg
starts out about 17mpg but will increase to around 20mg driving at 60mph with mileage
All of the engine sensors can affect fuel mileage.
The avgerage gas mileage is around 15 to 17 miles. However, you can save miles with less load in the back of the truck. You r gas mileage depends a great deal on your driving habits so the range can be broad. On average a ford f250 diesel gets between 10-18 mpg.
i have the same engine in a 1984 e350 and i get about 8
2001 ford diesel has a 36 gallon tank
12 to 16 mpg depending on weather and towing.
21mpg
I have a 2013 F250 crew cab with 6.2 motor. I only get 8.5 mpg. it likes it's gas !
20mpg