To summarize, the truck is going through a regen roughly every 120 miles. It doesn't matter if the trips are long, short, towing or not towing. The worst part is that it takes 30 miles of highway driving to clear the filter down to 0. Just wondering if anybody else has been having this problem. Took it into the dealer and they didn't have any advice.

 

Well if you're looking for advice, delete it before all the good tuners are gone into the shadows because of the damn EPA

 

How many miles on the truck? From 0% to regen in only 120mi. seems like something is off. Mine is pretty new still, only 3k mi., it seems to regen at or around the standard 500mi. range. Since having the dpf% screen enabled I've seen it go to 0% once, a couple other times only to 30% because my drive time wasn't long enough. It does take a decent amount of drive time to get it down.

 

Nox sensor on mine was the culprit. No lights of any sort also

 

my truck is new as well. Only 2600 miles. It does a regen every 350-400 miles depending and it’s NEVER gone down to zero percent. 23 is the lowest it has ever gone. Normally it’s in the 30s

 

From 0 to 100 percent full it is roughly 120 miles. The truck has 20,000 miles on it.

 

That's what mine did until the nox sensor would just quit and the truck was showing 0% if it where not for forscan , I would never know and probably went into limp mode while on my way to Florida with my fiver.
I had no light on , called my dealer and explained what was happening to them. They ordered a new nox sensor and stopped at the dealer with my trailer. I unhooked , they got it in the shop , changed the sensor and on my way I was. Trouble free since

 

How do you enable the DPF % screen? Only thing i have to the DEF level. I'm guessing its through forscan?

 

Forscan, or the dealer can enable it.

 

Thanks ! Ill have to check for scan tomorrow

 

9,000 miles and no regen yet and some may think it’s bull crap but run Archoil in it the stuff does what it claims.

 

I've got 16K miles on my 2018 and never seen, heard or felt a regen. Why would you want to know when it's happening?

 

From what I understand the truck will regen every 500 miles whether it needs to or not. How are you coming to the conclusion that it has not done a regen?

 

Nothing is telling me it’s doing. How are you guys knowing that it’s doing a regen.

 

Nothing tells you and it is about impossible to detect it. I can tell by watching my DPF % drop which I enabled using Forscan. If I shut it off during a regen I can smell it but other than that is is undetectable, at least to me.