I just sold my diesel pusher motor home and I'm going back to a fifthwheel. Even though I have owned two ford diesels (7.3&6.0), I was leaning towards a gas truck with 4.30 axle to tow my new fifthwheel (Montana with 11,700 dry weight and 2,600 pin weight). The problem is I have to order this truck and there are a ton of diesel powered f350's on the lot. So, 6.7 power stroke owners, how do you like your engines and how reliable have they been. Please post mileage along with any problems to date. Also, I'm looking at a crew cab short bed, how is the 26 gal. Fuel tank for you diesel owners? What kind of range do you get out of a tank, both towing and non towing?Thank you in advance!

One other question, if the truck starts a regen, do you have to stop what your are doing ( driving,towing,etc.) or do you just keep trucking like nothing is going on?

The 6.7 has been flawless so far. I've been tracking my mileage on this trip: FL to WY so far, and have been getting 10-11 mpg so far towing. I've heard very few complaints so far about the 6.7 except for rare fuel system problems. Be careful where you buy diesel water is deadly to any of these latest generation fuel systems.When the engine regens you just keep on driving. Not towing I get 17 +/- mpg. It is a towing beast, it pulls our 5ver up those grades easily and the engine brake makes going down the grades just as easy.

You will get much better fuel mileage with a diesel. The 26 gallon tank is a joke, figure on replacing it with a 50 gallon Titan tank right away. Diesel fuel was priced close to regular gas in much of the country, the east is where the price is out of line.I just pulled a 26' TT all around the country and got just over 11 MPG. I used all kinds of roads, not just interstates. I learned that the 6.7 was the right choice for me. The exhaust brake alone is worth it. I am well pleased in how the western mountains were not even a factor going up or down.It would be better to allow a regen to complete, but it ain't necessary.

I'm on my second 6.7 Ford.. Love it. No issues, great power. The long bed is 39 gal fuel tank. Love my DRW with 50 gal auxiliary tank !

2011 F350 6.7 DRW long bed, crew cab owner here. Purchased new to tow our near 14k fully loaded FW. Couldn't be happier. Same as shared before, you see the control panel display the regen while en route, no problem. This rig has a lot of power up and down hills. Love, love, love, the Tow Haul Assist when descending hills. A tap of the brake slows it down, another tap, slows it down more. The tap is more of a good push though. We took a recent trip to the mountains and averaged 15mpg, yet 12mpg is more like it. Having previously owned a 6.8L V10 SRW with a 7mpg towing, this is fantastic to us. It handles so well, that I (the DW) even do some of the towing on trips. Yes, no problems for us. We have the Laredo version with the 37.5 gallon fuel tank. With our V10, it automatically stopped at each gas station! With the diesel, we've got great driving range.

2011-present 6.7 superduty owners ? | Good Sam Community

43 Replies

Lynnmor
Explorer
Jun 07, 2015
You will get much better fuel mileage with a diesel. The 26 gallon tank is a joke, figure on replacing it with a 50 gallon Titan tank right away. Diesel fuel was priced close to regular gas in much of the country, the east is where the price is out of line.

I just pulled a 26' TT all around the country and got just over 11 MPG. I used all kinds of roads, not just interstates. I learned that the 6.7 was the right choice for me. The exhaust brake alone is worth it. I am well pleased in how the western mountains were not even a factor going up or down.

It would be better to allow a regen to complete, but it ain't necessary.
agesilaus
Explorer III
Jun 07, 2015
The 6.7 has been flawless so far. I've been tracking my mileage on this trip: FL to WY so far, and have been getting 10-11 mpg so far towing. I've heard very few complaints so far about the 6.7 except for rare fuel system problems. Be careful where you buy diesel water is deadly to any of these latest generation fuel systems.

When the engine regens you just keep on driving. Not towing I get 17 +/- mpg. It is a towing beast, it pulls our 5ver up those grades easily and the engine brake makes going down the grades just as easy.
Hedgehog
Explorer
Jun 07, 2015
One other question, if the truck starts a regen, do you have to stop what your are doing ( driving,towing,etc.) or do you just keep trucking like nothing is going on?

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2011-present 6.7 superduty owners ?

43 Replies

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