F250, 6.7L Unloaded Mileage

On the Michigan comment I love our supplemental heater in our F-350 diesel. It helps a lot with the very slow warm up time of the diesel.

My opinion--yours may differ--
Shocked that no has said if the OP is remotely considering a fifth wheel bigger than the very smallest ones, he should get a 350/3500 because bed weight capacity will be a limiting factor with 250/2500s. Our 2012 F-350 SRW CCSB 6.7 diesel consistently gets 11 towing, 15 around town, and 20 at interstate speed limits empty. It drops to 19 when I speed on the interstate and I've gotten as low as 10 on the highway simply pushing a head wind empty. The early days of emission controls (2006 - 2010 with Ford and through 2012 with RAM pre-DEF) got poor mileage. All three eventually got that under control and get amazing mileage considering the huge HP numbers they put out. Mileage is going to be a factor of how much you put your foot into it and how much load you're moving, especially after the trailer load starts exceeding the weight of the truck.

I see you live in Michigan, I hope you know you're going to need the supplemental heat and heated seats options. If you don't, you better invest in some really good coats, hats and gloves for the family.

I presume the block heater is standard equipment by now, you're going to need that at night.

That's why I as asking for real life numbers. I once drove my Expedition from the Rocky Mtn National Park Alpine Visitors center to the park exit, and got over 50 MPG but that's dropping from 12000 to 8000 feet over the course about 20 miles. Not exactly real life, every day experience.

Mileage figures often quoted are what an owner observed in a best case run. I have seen well over 20 MPG with a 6.7 F250 and no load.

On several tours around many states, I have seen 13+ MPG for the first few tanks pulling 7,100 lbs. The trip averages were just over 11 MPG over the full course. I could say 13.4 or 10.9, whatever you want to hear, but I will say 11.2 for an honest figure that includes all kinds of terrain and wind conditions.

I also have a 2012, I get the same as BB_TX. Mine are hand calculated. As Shinnerbock says, the computer is optimistic. You will find that regens can drop the mileage on a individual tank, but it all averages out. When towing heavy, the truck no longer needs many active regens, the exhaust is hot enough to do the job.

SidecarFlip wrote:
I find just the opposite. The newer the truck and the more advanced the emissions hardware is, the crappier the fuel mileage becomes.

I know it's a 'pie in the sky' statement but my venerable 97 F350 7.3 returns 21 empty and 17-18 loaded everyday, winter and summer though it rarely gets driven in the winter.

New, Tier 4 final trucks don't get close to that mileage.

I owned 2 7.3 PSD's in the past. They were great engines for their era.
However they don't compare to the modern engines in terms of ability and power.I agree they maybe a tad more reliable do to the complexity of the modern engine however the PSD and 4 speed trannies have become a bit weak and inferior by today's standards.

We for a test drive last night. I was very impressed with how smooth the engine is, in regard to the 'rattle' I was expecting. I think now it is just an issue of shopping dealers for best price, and placing an order.

I would not go by the computer's mileage. My brother's 2012 computer is always off compared to hand calculated numbers.

You can also got to Fuelly.com. Just don't be surprised that most people's mileage on there is nowhere near what most claim on the internet.

I'm at the opposite end of the spectrum from the above poster. 2015 F450 with a daily average weight of 12k lbs with my tools in it. Running 4:30 gears with a slightly taller than stock tire. I average 13 around town, 17 on the highway at 70+.

I reset my trip B meter when I bought the truck. It has been tracking fuel mileage since April 1st 2016. Including regens, all idle time, all towing, all city and highway driving, after 3102 gallons of fuel burned, it's reading 13.1mpg average.

I'm pretty happy with that for a truck this heavy, geared this steep, with this much power on tap.