Regen Frequency
Mountain Pass
Joined: Jun 2010
Posts: 173
Likes: 1
Thanks Ltngdrvr. Much appreciated. And just for clarification, I understand the importance of keeping the DPF clean, I simply wasn't clear on why I need to know when its happening.
To sum up what I understand from your reply in my own words; I have over 300 miles on my truck so far (it's brand new) and have not seen an "Exhaust Filter Cleaning" message. Therefore there have been no active regens so far. And I really won't be able to tell one way or the other if there are passive regens. Corrrect?
So the only thing I have to be watchful of is if I see frequent (what is frequent??) "Exhaust Filter Cleaning" messages. Correct?
Thanks,
Dave
To sum up what I understand from your reply in my own words; I have over 300 miles on my truck so far (it's brand new) and have not seen an "Exhaust Filter Cleaning" message. Therefore there have been no active regens so far. And I really won't be able to tell one way or the other if there are passive regens. Corrrect?
So the only thing I have to be watchful of is if I see frequent (what is frequent??) "Exhaust Filter Cleaning" messages. Correct?
Thanks,
Dave
Hotshot
Joined: Nov 2000
Posts: 11,591
Likes: 14
From: Pflugerville, tx
...
To sum up what I understand from your reply in my own words; I have over 300 miles on my truck so far (it's brand new) and have not seen an "Exhaust Filter Cleaning" message. Therefore there have been no active regens so far. And I really won't be able to tell one way or the other if there are passive regens. Corrrect?
...
To sum up what I understand from your reply in my own words; I have over 300 miles on my truck so far (it's brand new) and have not seen an "Exhaust Filter Cleaning" message. Therefore there have been no active regens so far. And I really won't be able to tell one way or the other if there are passive regens. Corrrect?
...
'passive' regens are not 'events', the exhaust gets hot enough on its own to do the same work an active regen does.. so there is nothing to watch.. it just happens..
I try not to watch.. don't really care as there isn't much I can do about it.
Lead Driver
Joined: Dec 2013
Posts: 9,762
Likes: 115
Active regen will pop up on the message screen as "EXHAUST FILTER CLEANING" and the fuel economy will drop off rapidly as it squirts extra fuel into the exhaust to burn off the soot.
There are also passive regn cycles and there is no notification of those.
Why you should care is because the regen is what keeps the DPF cleaned out so it doesn't get clogged up, and also, if your truck is going into active regen too often then you may have a problem, or you may need to run it down the highway for 50 or more miles.
There are also passive regn cycles and there is no notification of those.
Why you should care is because the regen is what keeps the DPF cleaned out so it doesn't get clogged up, and also, if your truck is going into active regen too often then you may have a problem, or you may need to run it down the highway for 50 or more miles.
I just want to know what the truck is doing. For the most part the truck takes care of itself. It will tell you "Drive to Clean Exhaust" if you interrupt the regens too often. About the only time you would *need* to drive by the house and keep on going. Mine will restart a regen process if I interrupt one close to home (or to the store). I generally catch the message that flashes. Sometimes you just wish you could start one - as you know how far you are driving. So a backpressure gauge and start regen button would be nice - even if these were just menu options on the productivity screen.
And I will add, if you don't or can't drive to clean, you will end up in limp mode and a trip to the dealer/your mechanic.
Senior User
Joined: Apr 2014
Posts: 116
Likes: 0
I was averaging about 2 active regens on every tank of fuel or roughly at least 2 every 400 miles of driving. I've noticed that if I let my truck do a cool down and idle for about 3 minutes before I shut it off that the frequency of my regens are less often. For example I only had one active regen in the last 400 miles. I know there are variables here so I don't know if there is anything to it or not.
Lead Driver
Joined: Dec 2013
Posts: 9,762
Likes: 115
Mine got more often and shorter after a programming update... For me that works out, since I do a lot of shorter city type trips. (Although that might be changed, since I am moving).
I seem to go 50-100 miles in the city and about once every 150-200 on the highway. I find factors like diesel fuel quality can increase/decrease the miles per regen - almost as much as driving style and pulling vs. not pulling.
I seem to go 50-100 miles in the city and about once every 150-200 on the highway. I find factors like diesel fuel quality can increase/decrease the miles per regen - almost as much as driving style and pulling vs. not pulling.
Mountain Pass
Joined: Jun 2010
Posts: 173
Likes: 1
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Hotshot
Joined: Nov 2013
Posts: 10,107
Likes: 96
From: Hempstead, TX
It is easier to tell while still on the highway because your instant mileage will recover once complete. In town, there will be some indication of recovery, but not as dramatic. Even once the extra fuel stops being injected for the regen, the high temps will continue to clean the DPF for a little while longer as it is cooling down, as long as there is still an exhaust flow through it.
Elder User
Joined: Jan 2008
Posts: 529
Likes: 0
I have a monitor that tells me when it started and when it stopped. You shouldn't have to worry about it, the truck's PCM will tell you if you haven't completed a few Active Regens with a "DRIVE TO CLEAN...." message. Ford doesn't want you to worry? I monitor because I'm just the worrying type LOL.
Senior User
Joined: Mar 2005
Posts: 162
Likes: 9
I might be jinxing myself, but I have never had a regen on my truck after 7K miles whether pulling a trailer or not. I use the Ford cetane in every tank as I did in my 6.0. I am not sure if that has something to do with the cleaner burning of the fuel or not - less buildup.
And just to clarify...I have been watching my dash like a hawk whether in the city or on the interstate. I have been curious about it since I have read a few threads on it because I did not know what everybody was talking about when the subject came to my attention.
And just to clarify...I have been watching my dash like a hawk whether in the city or on the interstate. I have been curious about it since I have read a few threads on it because I did not know what everybody was talking about when the subject came to my attention.
Posting Guru
Joined: Aug 2009
Posts: 972
Likes: 0
The truck will do a regen every 5-600 miles whether it needs it or not. I saw 2 regens last week while towing, one time the soot was at 1.2 and it regened down to .85. If you don't use something like an Edge CTS Insight you don't know how other you are actually in an active regen.
Elder User
Joined: Apr 2013
Posts: 714
Likes: 1
I might be jinxing myself, but I have never had a regen on my truck after 7K miles whether pulling a trailer or not. I use the Ford cetane in every tank as I did in my 6.0. I am not sure if that has something to do with the cleaner burning of the fuel or not - less buildup.
And just to clarify...I have been watching my dash like a hawk whether in the city or on the interstate. I have been curious about it since I have read a few threads on it because I did not know what everybody was talking about when the subject came to my attention.
And just to clarify...I have been watching my dash like a hawk whether in the city or on the interstate. I have been curious about it since I have read a few threads on it because I did not know what everybody was talking about when the subject came to my attention.
Lead Driver
Joined: Dec 2013
Posts: 9,762
Likes: 115
There is a cleaning solution that you can use to assist in the DPF clean out. It is slightly more involved than changing the oil, but still something that most seld-maintenance people could do. Luckily, (knock on wood), I have not had to do this.
Probably would still need a OBD II reader that is also capable of resetting the computer though.
Probably would still need a OBD II reader that is also capable of resetting the computer though.