Is this a problem? Regen
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Laughing Gas
Joined: Jul 2010
Posts: 1,155
Likes: 31
From: Idaho
Is this a problem? Regen
This question is for people that have edge insights or other monitoring tools.
Ok I have a edge insight, I mointor my soot level with it. I Always let the soot level run down to 10% when it regens. It is regenning within 120-150. Normal drive is 15 to 20 miles in traffic freeway.
Regens take about an extra 5 to 8 miles to complete once started.
Durring towing I See very little to to no regens.
What changed.
I only notice the possible issuse when I installed the Edge Insight.
At the same time I went with Chev Delo 5-40 syn oil and Blue def from walmat. I am about ready to go back to motocraft oil
I use ford pm22 for the fuel at recommended levels.
Ok I have a edge insight, I mointor my soot level with it. I Always let the soot level run down to 10% when it regens. It is regenning within 120-150. Normal drive is 15 to 20 miles in traffic freeway.
Regens take about an extra 5 to 8 miles to complete once started.
Durring towing I See very little to to no regens.
What changed.
I only notice the possible issuse when I installed the Edge Insight.
At the same time I went with Chev Delo 5-40 syn oil and Blue def from walmat. I am about ready to go back to motocraft oil
I use ford pm22 for the fuel at recommended levels.
Last edited by donovan; Jun 5, 2013 at 11:05 AM. Reason: Adding
Elder User
Joined: Jul 2003
Posts: 551
Likes: 1
From: SW Montana
Just as a point of reference, dealer service writer told me I should expect to use MORE DEF when towing, and when doing short trips. I have no way to monitor usage other than what the truck is telling me for miles left for DEF usage.
hope this helps.
hope this helps.
Mountain Pass
Joined: Jun 2006
Posts: 187
Likes: 8
From: Texas
Ok, during normal traffic/driving, you do not put much load on the engine, so it creates more soot thus needing to regen more often. On the flip side, the DEF fluid is not used near as much because the exhaust system temps are not high enough for the system to be able to properly use the DEF system.
During towing, its pretty much the opposite. Towing puts the engine in a high load duty cycle, which creates less soot, and high exhaust temps allowing the DPF system to do a "Passive" regen where it uses strictly exhaust heat to burn off the Particulate Matter. This is also where you use ALOT of DEF fluid, because the temps are high enough, the DEF fluid is able to be burned correctly, thus reducing the Nitrous Oxide (NOx) emissions of the engine.
Hopefully that helped you out lol
During towing, its pretty much the opposite. Towing puts the engine in a high load duty cycle, which creates less soot, and high exhaust temps allowing the DPF system to do a "Passive" regen where it uses strictly exhaust heat to burn off the Particulate Matter. This is also where you use ALOT of DEF fluid, because the temps are high enough, the DEF fluid is able to be burned correctly, thus reducing the Nitrous Oxide (NOx) emissions of the engine.
Hopefully that helped you out lol
Lead Driver
Joined: Nov 2005
Posts: 5,239
Likes: 4,257
From: Kaysville Utah
Anytime your exhaust temps are above 572° F your emissions are performing a Passive Regen. The higher the temp, the faster the soot is burned off.
You may go 900 miles towing and not see an active regen. because all the soot was burned off with the passive regen.
You may go 900 miles towing and not see an active regen. because all the soot was burned off with the passive regen.
Senior User
Joined: Jun 2006
Posts: 176
Likes: 0
From: Schaefferstown, PA
I'm using a ScanGauge II to monitor all 4 exhaust temp sensors. Which temperature should I be looking at for the 572?
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
EGT14 is the sensor post DPF, last sensor.
I think the first (EGT11) and last are the best to monitor.
If the last is at or above that number, you know the DPF is cleaning passively and depending on how much over, you should see the soot slowly drop.
Sometimes the DPF heats up a little using engine braking down a hill, which I've always thought was "interesting" even though post turbo was cooler.
I think the first (EGT11) and last are the best to monitor.
If the last is at or above that number, you know the DPF is cleaning passively and depending on how much over, you should see the soot slowly drop.
Sometimes the DPF heats up a little using engine braking down a hill, which I've always thought was "interesting" even though post turbo was cooler.
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