Thanks for sharing. We have pretty much identical truck, colour, trim, 4K tow. We haven't towed our camper yet. 12.1 = 23+ mpg (UK), very impressive! I have a letter from Ford here with a recall to re-program the trailer brake controller. Our camper is light, has surge brakes (which I don't think actually work?), so a non-issue.
Edit, I have to ask, did you fuel up with premium?
Edit, I have to ask, did you fuel up with premium?
Sponsored