Looking for MPG (UPDATE)

[Colo_Native]

I am thinking of buying a F250 with a 6.7 diesel, I was wondering anybody who has that motor and towing what MPG they are getting because the short box super cab and crew has a 26 gal tank and the long has 37.5.
I don't want to here about Chevy or Dodge or anything else. Thanks

Do to a number of questions I am looking at 2014 or 2015 SRW and around 10K trailer give or take

[crshman]

4x4ord wrote:
My '11 with 20" wheels gets about 17 miles/US gal non towing. This is based on a long enough trip to include a regen. Summer time I might get 19 mpg. Towing I get anywhere from 5 to 11 mpg depending on what I'm towing. 11 towing the Rv....about 23 - 24000 lbs gross combined weight.

How fast are you driving loaded and unloaded to get those numbers?

I calculated FishOnOne's average speed to be 55 mph from his picture.

I drive my '14 F250 6.7 with a lead foot around 80 mph and I see 15mpg unloaded on average.

When I pulled my 14k 5vr doing about 70 mph I was around 8mpg.

[4x4ord]

My '11 with 20" wheels gets about 17 miles/US gal non towing. This is based on a long enough trip to include a regen. Summer time I might get 19 mpg. Towing I get anywhere from 5 to 11 mpg depending on what I'm towing. 11 towing the Rv....about 23 - 24000 lbs gross combined weight.

[APT]

If you want range, buy an aux tank. I don't think you can do anything that will use 10% less fuel under the same conditions, especially under load/towing. 10% only gets you 25 miles farther per tank. 50 Gallon aux tank gets you 500!

[majorgator]

FWIW, a very good friend of mine pulls his 5th wheel (I'm guessing 9K to 10K, not a huge one) with a 2013(or 14) extended cab, short wheel base, 4x4 F250 w/6.7 PSD, bone stock. I do not know his gear ratio, size of fuel tank, or the speed at which he ordinarily tows. However, he claims 16 MPG towing in and around FL and GA. He is a VERY trustworthy person and has ZERO ego. I do not doubt for one second what he has told me.

[Lynnmor]

If you go with the 26 gal. truck, figure on installing a Titan 50 gal. replacement tank. I did, that small tank proved to be a pain.

[45Ricochet]

FishOnOne wrote:
I got a '12 6.7 and get between 16.4 - 20 mpg non towing. I'm really impressed with this trucks fuel mileage.

Here's a picture of a recent trip to our deer camp with 3 people and supplies in the bed.

[iawoody2]

I have a 2013 F250 crew cab 4x4 and get 19, 20 non towing and 10.5 to 11.5 towing a 5th wheel that weights 12400 at 65 mph. True about the 26 gal tank, I added a 30 gal auxiliary gravity flow tank in the truck bed. Works great and gives me enough fuel for a days travel.

[FishOnOne]

I got a '12 6.7 and get between 16.4 - 20 mpg non towing. I'm really impressed with this trucks fuel mileage.

Here's a picture of a recent trip to our deer camp with 3 people and supplies in the bed.

[bighatnohorse]

Your post omits whether you're looking at a new 2015 model or a used vehicle.
One must also recognize that a dually won't achieve the same mpg as a single rear wheel machine.
The rear end gear ratio will also affect mileage.
Speed also greatly affects mileage.

My 2015 Ford 6.7 diesel CC dually will get 12.6 mpg loaded at 65 mph and only 10.6 mpg at 70 mph!!!

That said, the Ford 6.7 diesel is one quiet, powerful amazing machine. Enough so, mpg, while important, seems insignificant when driving it.

[jus2shy]

Have you checked out Fuelly.com? On this website, many owners are charting out their fuel economy and typically tag notes along with their fuelings estimating tows/weight/% of the tank towing. Strongly recomment hopping over there and looking over the year of Ford you are interested in looking at. I'm sure some 2015 owners have started posting.

[agesilaus]

I get 17-18 not towing on the highway. 10-12 towing depending on winds and grades. Your 6.7 is a newer version tho if you are getting a 2015. And mine is a crew cab with 4WD both of which reduce mileage a bit.