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

1jeep
Explorer II
Jul 09, 2015
wow ...50k doing tranny fluid, I was planning for that at 100k when I do the coolant, maybe im behind on that service.
Kenc_AL
Explorer
Jul 09, 2015
1jeep wrote:
Kenc...since your at 100k have you done the coolant flush yet? according to the manual that is coming up just curious if it was a real pain to do?

Yes I am due service now and will get the flush done in next couple weeks. I do not do my own but will have nearby shop do.

I also have them drain, flush refill with new tranny fluid each 50,000 miles. I know that is above Ford recommendations but my last Ford tranny ran 280,000 trouble free miles. The cost of that is much less than a transmission rebuild. Towing in this heat, we go to Florida some, getting clean fresh fluid in every 50,000 miles I feel it is pretty cheap insurance. Some of you may think it is a waste of dollars - if so fine that is your opinion.
jrp26789
Explorer
Jul 09, 2015
I guess I haven't been that close before. I don't worry about buying the cheapest fuel, but then I only travel occasionally, not full time, so I could see the point there. It's just not something I ever gave consideration to when buying a vehicle.
Fordlover
Explorer
Jul 08, 2015
jrp26789 wrote:
All this talk about fuel range. I am not old by any means and have yet found a fuel tank smaller than my bladder. I don't know how you guys do it.

For me? Well, when I'm towing, I always have my restroom with me no matter where I stop. I can't say the same for a gas station. I've had a scare where I was down to about 7 miles of range showing on the computer, trying to find an open gas station in a rural area (in Alabama IIRC)
ReneeG
Explorer
Jul 08, 2015
Kenc_AL wrote:
1jeep wrote:
Just turned 90k miles on my 2011, only fuel filters, brakes, tires and oil! It did have a recall for emissions, this was a reflash and I have noticed no difference.

Don't forget these trucks are 6 speed trans and pull very nicely as all 3 brands do.

My 2011 6.7 Lariat King Ranch flipped over 100,000 trouble free miles today - over 25,000 towing 34 FT 5th wheel with total truck & RV load 22,500 lbs.

I love the tow haul mode, its downhill braking is exceptional. You have to get above 7% grade for it not to handle the set cruise downhill speed. Have not yet found an uphill grade the cruise does not maintain.

I get 10.7 MPG towing and around 18 not towing but I live in rolling hills which has a negative impact. Spent 7 weeks in Florida (no hills) and got 22 MPG not towing. The regen is absolutely no issue.

I would recommend this truck to anyone.

Same here - same year, same model (DRW CC), purchased new, but we only have approximately 12K miles with 4500 towing. Fully loaded, full tanks on our 32' FW weighing in at 14k, we get anywhere from 8 to 12mpg towing depending on terrain and same 18k not towing. Whether fully loaded for a week of dry camping or partial tanks for less, it pulls effortlessly and love that Tow/Haul mode too especially with the mountains here in Idaho!
1jeep
Explorer II
Jul 08, 2015
Kenc...since your at 100k have you done the coolant flush yet? according to the manual that is coming up just curious if it was a real pain to do?
Kenc_AL
Explorer
Jul 08, 2015
1jeep wrote:
Just turned 90k miles on my 2011, only fuel filters, brakes, tires and oil! It did have a recall for emissions, this was a reflash and I have noticed no difference.

Don't forget these trucks are 6 speed trans and pull very nicely as all 3 brands do.

My 2011 6.7 Lariat King Ranch flipped over 100,000 trouble free miles today - over 25,000 towing 34 FT 5th wheel with total truck & RV load 22,500 lbs.

I love the tow haul mode, its downhill braking is exceptional. You have to get above 7% grade for it not to handle the set cruise downhill speed. Have not yet found an uphill grade the cruise does not maintain.

I get 10.7 MPG towing and around 18 not towing but I live in rolling hills which has a negative impact. Spent 7 weeks in Florida (no hills) and got 22 MPG not towing. The regen is absolutely no issue.

I would recommend this truck to anyone.
kennethwooster
Explorer
Jul 07, 2015
Bought a 2011 right after they came out. Couldn't believe how awesome the truck is. Needed more carrying capacity so went to 2014 6.7 DRW F350. A very sweet truck.
hone_eagle
Explorer
Jul 07, 2015
jrp26789 wrote:
All this talk about fuel range. I am not old by any means and have yet found a fuel tank smaller than my bladder. I don't know how you guys do it.

My range is a couple of thousand miles,so stopping is a must but its where we want not at a truck stop ,usually a rest area that is nice and parklike ,walk around a bit then on our way .
Easy on and off , no searching for a empty lane and all of the hassles of fueling every 2 hours,plus you now have the option of fuel in the lowest cost state or even country.

Range is critical to costs and comfort
1jeep
Explorer II
Jul 07, 2015
gsxr1300 wrote:
1jeep wrote:
Just turned 90k miles on my 2011, only fuel filters, brakes, tires and oil! It did have a recall for emissions, this was a reflash and I have noticed no difference.

You mentioned 4:30 gears, I believe you wont be able to get that until your in a f450, that trailer you posted will easily be towed by a 350. Don't forget these trucks are 6 speed trans and pull very nicely as all 3 brands do.

What tires did you replace the stockers with? I need some this week.

BFG Long trails, fairly quiet considering the tread, they seem to be wearing like steel.