I don't think I ever posted this here. We recently took a trip with our camper and the 2025 F150 Powerboost to South Dakota and back. I logged every fillup the entire time. There are also some notes to go with it. I did have a column for what I filled up with, but I deleted it and forgot I did.
I used the highest octane I could get at the pump, which throughout the midwest, is really a crap shoot. Lots of 91 instead of 93, but also lots of E0 instead of E10. I do recall one of the fillups being an E15, but I don't recall which one. A lot of the middle of the trip was 91 E0.
Things that come as no surprise.
Headwinds murder economy. Also 100+ degree temps, a 30 mph headwind, 65 on the interstate, and an 8 foot wide travel trailer is a sure bet to make your credit card go up in smoke buying fuel.
Highway speeds, murder economy.
The hybrid doesn't help with towing. No brainer, maybe with a bigger pack it would, but for interstate work, it is mostly all up to the 3.5 and its turbos.
Slight surprise.
Locking out 9/10 is the sweet spot for the truck. While the truck has plenty of grunt to loaf along in 10th and will happily do so, keeping it in 8th pays off in better economy. This was never a problem in the Ranger since it would rarely pull 9th and almost never pull 10th, so it was already 'locking' those gears out.
For most of the interstate driving we're at 70mph. That's just where I prefer to drive. Any slower and you're a rolling roadblock, its not that I care what other people think, I just feel safer not being passed by people going 20mph faster than me.
Note: The colors are nothing more than serving to separate the days of the trip. I quit using them partway through and wasn't bothered to update it.
"Ford MPG" is what the dash displays.
Of oil related note. The oil was changed on the truck right before we left (1000 miles on the ODO) and was changed when we got back. OLM read 33% the day after we got home.