Thought I would start a new thread to get a general idea what kind of MPG's everyones truck is getting. I have a 2005 F-150 4.2L. It has 30,000 miles on it. No mods done on it, I use castrol 10w-30 oil. Last tank of gas, I averaged 23.5 mpg. Thats with not using the AC and driving like a grandpa. But, with gas at $4.00/gal. I can't afford to step into the pedal anymore.
Now, before gas jumped up so high, I would push that gas pedal to the floor, I averaged about 12 mpg. This time, I grandpa'd it and got 23.5, but this was the first time. I am going to try it again to see if I can mirror the same results.

 

the AC wont hurt your mileage that much.

 

haha i granpa mine and i get 13 to 14. i drive normal and i get 12 and under. and i only have 57000 miles on my 04 fX4. The 5.8 loves to eat fuel. but on the highway i get 17 sometimes.

 

5.4L.

 

https://www.f150forum.com/showthread...hlight=mileage

https://www.f150forum.com/showthread...hlight=mileage

https://www.f150forum.com/showthread...hlight=mileage

These were what I found in just a minute or two using the search button... I am sure there are tons more..

"SEARCH" button.. Live it learn it love it.