Originally Posted by LarrysPony
I have the same year 150 with ecoboost. I have 3.73 axle with hd trailer tow. I get 8-9. I don't use tow haul because I dont like the way it downshifts. I use manual when I get in some substantial hills. I am headed to the western national park in a couple weeks so out should be interesting.
We have a 17 f150 with the 5.0 and flagstaff 25bh(2504) our first trip was 1500 miles @ 7-8 mpg. On our 2nd trip 1100 miles, I used premium gas $$$$ and I installed a bed cover, we got a little over 10mpg. They were 2 different routes but everything seemed to be a lot smoother, the truck didnít seem to working as hard, stayed in 5th more with no 3rd gear.....3.55 rear....just my observation nothing scientific