I think you should buy the spare dpf now and put it on the shelf for future use, that way when you never use it you can chalk the expense to your attitude. Apparently there's not a lot of data out there on them failing, which you refuse to accept even from someone that works on them every day. Apparently you know more than the techs and just don't realize it.

 

If somehow we could come up with a rough idea when this major expense might occur, then an informed decision can be made about trading a truck. Yes, there is most likely a wide range in miles, but a little information is better than none.

Also it would be worthwhile to know if bio-diesel is a factor in the DPF clogging.

 

You could buy an old 1992 Cummins 12V Inline 6 Cyl Diesel. It will run 600 Thousand miles or more without major problems. It is bullet proof. Water in the fuel will not kill it. Cheap to buy and cheap to run. Just swap it for the 6.7. Problem/worry solved.

Now ..........The rest of the story.........

I too struggle with the possible extreme expense of maintenance/repair of the 6.7
I used to own the Cummins diesel. It is with it's third owner and is still running just fine.

I have the F-350 6.7 because it is so very nice to drive. It is a strong tough truck.
However, the 6.7 engine is fragile in some ways (in my opinion). I believe some design changes could make a big improvement in reliability. I believe Ford is very very wrong in some of its warranty decisions.
So why don't I use the old Cummins engine. It is very Noisy. It has 1/3rd the HP and 1/3 the torque. Therefore it can not do the job I need/want done.

I truly enjoy my F-350 and choose to not spend my time being worried about it. I take good care of it and drive it and make it work. I tow a 41.5 ft 18K lb 5th wheel and the truck does an excellent job.

The whole emissions stuff is wrong (IMO). It is causing 99% of our problems and concerns. I am in Montana. I may dump it all at 100K miles. Time will tell.

Enjoy the truck and have fun.

 

3 6.7s at work are subjected to random trips everyday, hauling different equipment from un loaded to around maximum gvw and different peoples driving styles who get assigned to them for the day ( we do disaster restoration ) two are 2011s have over 150k last time i was in them and one is a 2013 with less than 50k never had a dpf issue surprising because the one we mainly use for down the street home depot runs to buy lumber so it doesn't really hit the highway

 

I understand the question posed by the OP, and I too wonder about the down the road stuff... I wonder, but I don't worry


somewhat like the VA is a precursor to the Obumacare issues to come,
it might be good to plan ahead a bit

 

It also won't pass emissions in the states that have testing and the number of those are growing. Face it, your either, eventually, going to drive an old pos or put up with todays technology.

 

True.........
or stay in the states that refuse to play the Fed's games......like Montana.

 

1. Cool the attitude.

2. You aren't going to get a good answer. There is no set life on a DPF, it will depend greatly on how you use your truck, where you use your truck, and a bunch of other factors. The best benchmark is probably from Ford, when they released the engine as a 250k mile motor. When they do that they typically test it at both book ends - idling in cold weather, thru to loaded at maximum GCWR. There have been trucks that have done over 500k that haven't needed replacement, and I don't recall anyone here having to replace it yet.

 

Howdy BigF350.......

How about this..........

"I want what I want, and I want it Now!!"

I remember trying that with my Dad........
After.....
"Yes Sir, I understand!"

Life is so good.........
Life is not perfect.....Then again, I am not so sure I know what perfect is. That might be why I am Not in charge. My Higher Power is !!