Frequent regens
FTE Chapter Leader
Joined: Jan 2006
Posts: 21,384
Likes: 8,089
From: North Central Washington
I might of missed it but are you running any additives? and the fuel you run is the low sulfur?
Maybe it just needs to be worked a little harder. Hook on to a heavy load and go work it for a day and see if it cleans it out a little.
Maybe it just needs to be worked a little harder. Hook on to a heavy load and go work it for a day and see if it cleans it out a little.
Post Fiend
Joined: Jan 2009
Posts: 6,521
Likes: 11
From: Greenwood, SC
1. I've talked to others with similar driving, and they see regens much further apart. If I ever do shorter trips, I'm looking at closer to 40-50 miles in between.
2. I understand how it works, but I would assume lighter load = less soot. I would also think heavy loads create lots of soot, but I know the passive regens keep the DPF clean.
3. In the first 10,000 miles, motor operated the same while unloaded. I know why it was burning more DEF while towing.
As for the previous question, I NEVER idle. If I won't be moving in less than 2 minutes, truck is OFF. Parked in the garage, so it doesn't even need to warm up.
Here's my annoyance: Wednesday I complete a cycle on the way home from work. Drive to/from work on Thursday (30 hwy miles each way). Pick up the kids, and 2-miles in to my 5-mile drive to the gym another regen begins. So, I stay on the hwy, drive 3 exits pas the gym (about 5-miles into the regen), then reverse course (get off exit, stop, cross bridge, and back on to highway). Of course, when I hop back on the hwy the regen now shows complete. Truck was never in park, but seems to have completed a full cycle in about 6 miles. Not the first time I've noticed this, but it only ends "short" if I hop off the highway and hit a stop sign.
Continuing to monitor... Last summer I saw regens DAILY, about 60 miles in between, but that was before I started my detailed log. Not sure if we have a winter blend in SOCAL, but I've heard of less regens on the winter blend. Gonna see if frequency increases again here in the next couple weeks.
2. I understand how it works, but I would assume lighter load = less soot. I would also think heavy loads create lots of soot, but I know the passive regens keep the DPF clean.
3. In the first 10,000 miles, motor operated the same while unloaded. I know why it was burning more DEF while towing.
As for the previous question, I NEVER idle. If I won't be moving in less than 2 minutes, truck is OFF. Parked in the garage, so it doesn't even need to warm up.
Here's my annoyance: Wednesday I complete a cycle on the way home from work. Drive to/from work on Thursday (30 hwy miles each way). Pick up the kids, and 2-miles in to my 5-mile drive to the gym another regen begins. So, I stay on the hwy, drive 3 exits pas the gym (about 5-miles into the regen), then reverse course (get off exit, stop, cross bridge, and back on to highway). Of course, when I hop back on the hwy the regen now shows complete. Truck was never in park, but seems to have completed a full cycle in about 6 miles. Not the first time I've noticed this, but it only ends "short" if I hop off the highway and hit a stop sign.
Continuing to monitor... Last summer I saw regens DAILY, about 60 miles in between, but that was before I started my detailed log. Not sure if we have a winter blend in SOCAL, but I've heard of less regens on the winter blend. Gonna see if frequency increases again here in the next couple weeks.
New User
Joined: Mar 2014
Posts: 7
Likes: 0
From: Rapid City, SD
I have a 2013 F-350 6.7 built on 4/29/13. In the summer months I was seeing a regen about every 100-150 miles of daily driving without any towing (commuting 30 mins each way to work). If I would go for a long road trip, regens about every 250-300 miles. It seems any sort of towing or extended highway time significantly increases time between regens, which makes sense.
Just to add more detail: I always use either PM-22 or Opti-Lube XPD in every tank. Could have just been due to the fact that it was new, but once I started using diesel additive it seemed to extend the mileage between regens slightly. I also always try to fill up at the busy Flying J truck in town when I can.
Matt, are you using and additives? Have you had the PCM reflashed or are you on the original calibration? Last, some have seen improved regen performance if their EP sensor tube was loose and they tightened it down; have you checked yours?
Just to add more detail: I always use either PM-22 or Opti-Lube XPD in every tank. Could have just been due to the fact that it was new, but once I started using diesel additive it seemed to extend the mileage between regens slightly. I also always try to fill up at the busy Flying J truck in town when I can.
Matt, are you using and additives? Have you had the PCM reflashed or are you on the original calibration? Last, some have seen improved regen performance if their EP sensor tube was loose and they tightened it down; have you checked yours?
New User
Joined: Feb 2014
Posts: 15
Likes: 0
All confirmed by my Edge CTS
I usually use Sinclair B2 or Chevron Diesel, with a dose of PM-22a
My regens for the first 5000 miles were about 80 to 90 miles apart in mixed driving, and about 150 miles on a highway trip.
I switched to Valvoline 5W-40 synthetic premium blue, and my mixed driving regens went to about 150 to 160 miles, in town only is about 90 to 100 miles. I have not taken a highway trip yet, and can't really for the foreseeable future.
From watching my soot levels and egt temp in the DPF I have come to the following conclusion.
Going up a grade or loaded you will usually go into a passive regen. (usually anytime your dpf gets above 600 degrees from exhaust temps) If you are doing pure city driving or going down a long grade on the highway your soot levels will build pretty fast. I quickest I have seen the soot % climb in city driving is about 2-3% every mile, which would put regens about 50ish miles apart.
Makes me happy that I can finally dump the system at the end of the month.
I usually use Sinclair B2 or Chevron Diesel, with a dose of PM-22a
My regens for the first 5000 miles were about 80 to 90 miles apart in mixed driving, and about 150 miles on a highway trip.
I switched to Valvoline 5W-40 synthetic premium blue, and my mixed driving regens went to about 150 to 160 miles, in town only is about 90 to 100 miles. I have not taken a highway trip yet, and can't really for the foreseeable future.
From watching my soot levels and egt temp in the DPF I have come to the following conclusion.
Going up a grade or loaded you will usually go into a passive regen. (usually anytime your dpf gets above 600 degrees from exhaust temps) If you are doing pure city driving or going down a long grade on the highway your soot levels will build pretty fast. I quickest I have seen the soot % climb in city driving is about 2-3% every mile, which would put regens about 50ish miles apart.
Makes me happy that I can finally dump the system at the end of the month.
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