DPF regeneration

Regen is computer controled using inputs from the DPF. More soot, equals more regene.

I'd probably go to the FTE.com (Ford Truck Enthusiast) site. I have a 6.4L diesel and mine regens about every 400-600 miles. Its supposed to clean accumulated soot from the DPF. If you catch the notice on your dash, take it on the highway until it shows it's cleaned. I dont' know about 6.7L, but on mine the dash notice comes and goes quickly.

MStat wrote:
Fellow 6.7 owners,

In April, DW & I purchased a 2015 F250 with the 6.7 diesel. Gotta say I love how it tows our trailer. Goes down the road like it is not even back there.

My question is about the DPF regeneration cycle.

It seems like the DPF goes into a regeneration cycle at least once every tank of fuel. And it does not seem to really matter what type of driving I do.

Nine hour steady interstate at least once during the nine hours
Commuting to work 10 miles back roads, 25 miles interstate

Does this seem normal?
What triggers the DPF to go into a regeneration mode?

Thank you

Completely normal... Keeping this process simple the regeneration is triggered by a exhaust pressure sensor that measures the backpressure on the DPF. As the DPF collects more soot the DFP becomes more restricted therefore more exhaust backpressure builds up. Once this backpressure reaches a certain threshold the regeneration process begins to burn off the soot particulates. My truck typically takes ~10 miles at highway speed to complete a regen. A simple way to watch for a regen is to watch your instant fuel mileage screen as you'll see your instant fuel mileage drop to ~12 mpg when this happens. Also this same screen is a good tool to know when the regen process has been completed.

I've had two 6.7s and they seem to go along way between regen. One thing I noticed, and you can call me crazy, but when I bought the 2011 it had a number of free oil changes, so I used the regular Ford diesel oil. After the program was over I went to Mobile synthetic for diesel, 10 w 40. I noticed right off how much further I could go without needing to add DEF.

I don't have that particular vehicle, but the one I do have that has a DPF, does the same thing. The regen is triggered by a sensor that measures the back pressure of the DPF, which increases as it fills with soot. When the computer sees the DPF is getting full, it regenerates. You have no control over it. And once a tank of fuel is about right. Maybe twice.

I tow with mine at least 95% or more when its on the road. I can go close to 4000 miles (give or take) before I have to add DEF. So as long as you're getting at least 3500-4000 miles before running low, my experience says you're OK. If you don't tow as often, you get even better distance out of a full tank. Maybe even close to double that I would think.

I have the same truck. I towed over 5000 miles this summer. Only added DEF after about 4500. Put on a thousand since and still not asking for more. I wish it had a better notice that a regen has started. It just flashes briefly. I wouldn't want to shut the truck down while it was doing it.

Did you get the Ford brake controller with yours? That thing is absolutely the best there is. It is tied in with the computer and monitors everything to assist in braking.

O.P. is aking about DPF regen. WHy is everyone commenting about DEF usage??? Completely unrelated...

As mentioned, the DPF regen is computer triggered....I have an Edge Insight CTS and do monitor DPF Soot Concentration...we did a cross country pulling a 20k lb TH...while I was at less than 1.00 most of the time and 0% DPF load, I would still regen every 550 miles or so, I assume it is an EPA related trigger. I drive 250 miles per week now, currently regen every 10 days or so, around 400 miles...

Cale

Easies way I can tell on my 15 6.7 is watching the engine oil temp and trans temp gauges (digital), they both will rise until completion then back to normal