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.
it gets around 16 to 18 .....downhill with a tailwind.
14qts Rotella T 15W40
i think they come with 750cca but recomend no less than 850cca if you have any kind of winter weather.
The 2003 Ford F250's never came with a 7.8 diesel ... they did however come with a 7.3 diesel turbo charge and are good engines. As for transmissions , all depends what kind ... manual or automatic ?
Check out www.fueleconomy.gov
I like to run 15w-40 rotella or dello or 10w-30
Check out www.fueleconomy.gov
Ford uses Motorcraft Spark plugs on all there vehicles.
10-20, it depends on load and driving style.
it depends on what kind of options you want it to come with.
15-40
When I am running empty, I get 11, when I am towing my boat or RV. I get between 7 or 8. WOW, wish I had my old Dodge Cummins back. The V-10 has alot of power, but you pay for it with gas mileage.