Stuck in regen???

Thanks jmperlik,

I agree I think it was a mistake for ford to "hide" this from us "retail" folks. From reading the manual, it's obviously that the DPF % and OCR are activated in the fleet truck versions, so why not us? I don't understand what there is to gain from not having those parameters visible. I complained about that to my dealer and they activated it for me, however they only activated the DPF %, so I still have no control over when they start.

Anywho for me i'm finding that if i'm driving around in the city I have to regen about every 150-200 miles or so, however when i'm on the highway, I can pretty much go forever without seeing the % tick up, so yes I think that at higher speeds, the exhaust gas temp is high enough that it cleans itself, thus it doesn't need to raise EGT further (you also produce less soot under consistent operation). Soot is produced from incomplete combustion, which is usually a result of a little too much fuel for the available air. This condition normally happens when you first step on the pedal, or are accelerating, so it makes sense that city driving increases the amount of regen's required. On my last 2 regens, the DPF % only went down to 10% where the regen kicked off, and eventually started climbing back up, I only have 1600 miles on the truck.

As far as adding DPF Filter % Full to your IPC (Instrument Panel Cluster) via FORScan...

Module: IPC
Address: 720-07-02
Original Value: 0242 087C
Changed Value: xAxx xxxx

This adds the DPF % screen to the Truck Information screen. Some trucks will report a camera error after making this modification. To avoid that, make your update according to the following: If your original default value is 0, change to 8; if 1, change to 9; if 2 then A; if 3 then B; if 4 then C; if 5 then D; if 6 then E, if 7 then F

Once you get the above modification made, then read my posts #24 & #31 in this thread which will provide you what you need to know on implementing and using OCR.

I have successfully deferred my Auto Regen now several times to a time when I would be getting good a highway run in, and these 2 mods are by far the top 2 FORScan mods I have made to my truck thus far. I don't think I have driven over 15 miles before re-enabling Auto Regen, but have shut off and restarted the truck several times and drove that mileage with DPF Full message before going on a highway DPF purge run.

I'm going to break down @jmperlik last post and add some comparative comments on the observations I have had driving my truck, okay, here goes...

jmperlik said:

Some updates, observations, and theories from me on this DPF Auto-regen topic:

• Three weekends ago after doing some shopping, I was at 90% DPF full and about 5 miles from the closest Interstate. By the time I got to the interstate, I was at 100% full and watched it drop down in the 5% increments until it got to 0%. I drove a little too far before turning around so I climbed back up to 20% before getting home.

Click to expand...

Yes, I have experienced this same thing. Sort of frustrating to go do a "DPF clean out" run only to return home at 20%.

jmperlik said:

Some updates, observations, and theories from me on this DPF Auto-regen topic:

• Two weekends ago after a car wash, I noticed I was at 85% full, so I figured I'd try the same trip to "blow things out" again. I only got up to 90% Full before getting on the Interstate and I drove 30 miles without every making it 100% DPF full, so I never started a DPF regen. Stopped for dinner and drove 30 miles back and never hit 100% Full, so no regen again? Is this what "passive" (operating at high enough temperature that active regen not required) regen is?

Click to expand...

Correct, your truck was in "passive" regen and the DPF % Full was creeping upward much more slowly then city driving. I had this same experience once, and before I got to 100% full I was like 50 miles down the interstate before I turned around for home (I started to wonder when I would actually get to 100% Full), of course that meant 30 miles of filling up with soot after the 20 miles of "active" regen before I got home, but after the active regen things were heated up so much that it was in passive regen mode those last 30 miles.

jmperlik said:

Some updates, observations, and theories from me on this DPF Auto-regen topic:

• Two days later on my 15 minute 1-way commute into work, I noticed I started a regen about halfway thru my commute and only got down to only 70% by the time I got to work, where I turned my truck off and opened the door to hear the DPF ticking as I walked away.

Click to expand...

Been there done that! Now with OCR added to my IPC, I keep a watchful eye on my DPF % Full when it is > 80%, and when it reaches 90-95% I am at the ready to uncheck the Auto Regen box in Settings if I am not going to be in a good highway run to prevent exactly what you described from happening again. However, that being said, I can tell you that on my 8 mile drive home from work when this has happened to me the active regen will resume again on the trip home, and if it doesn't finish you can sometimes be in a seemingly constant state of regen.

jmperlik said:

Some updates, observations, and theories from me on this DPF Auto-regen topic:
After closely watching my DPF Full %, I seem to be requiring DPF regen far more often than the 325 mile range @kdjasper has reported earlier (don't have a good explanation for this...)

Click to expand...

Okay, let me provide an update on this...I have not seen a 325 mile range since I had my EGR replaced through the recall. I'm not sure if that was what changed things, or just that I have piled more miles onto my truck and currently at just > 8,000 miles. In fact, I have noticed regens as early as 150 miles with all city type driving. I have a lot of highway miles since the last regen and I am currently at 95% Full with a regen starting in the 250-275 mile range. From research I have done, I believe our trucks are likely to go into an active regen every 500 miles at a minimum if you were on a big travel day and having passive regen along the way. I have done a bunch of research on how to expand the range between regens with fuel additives, because frankly, having DPF Full every 150-250 miles is starting to annoy me blocks the truck from delivering the fuel economy it is capable of. Here are links to a couple products that I think may help out...

Every 6 months or 10,000 mile intervals --> https://www.hotshotsecret.com/shop/diesel-extreme/ "Reduces DPF regeneration cycles up to 50%"

Potentially as a once in a while or every tank additive --> https://www.amazon.com/Fuel-Ox-Complete-Treatment-Combustion/dp/B07CGFCJGW/ref=sr_1_3?crid=WM3CNE6PYQCP&keywords=fuel%2Box%2Badditive&qid=1555671949&s=gateway&sprefix=fuel%2Box%2Caps%2C151&sr=8-3&th=1 "CUTS REGENERATIONS AND EMISSIONS : Fuel Ox fuel treatment contains a patented combustion catalyst that provides an earlier ignition and a more thorough and cleaner burn of fuel. With more fuel burned in the combustion cycle, less soot, smoke, or emissions are produced that clog and fill diesel particulate filters (DPFs) that initiates the regen cycle."

I have the 3oz Fuel Ox from Amazon but haven't added a 1/3oz of it to a tank yet (1oz treats 80 gal).

jmperlik said:

Some updates, observations, and theories from me on this DPF Auto-regen topic:

• DPF Auto-regen will not start unless you are very near to or at 100% Full or on DPF Full screen (I haven't seen any start earlier than 100% as @kdjasper has)

Click to expand...

Update: since I have added OCR to IPC my truck now only starts an active regen when it reaches 100% Full! Prior to adding OCR to IPC, I would witness auto regen getting underway as soon as 80% at times, and most of the time never reached 100% before kicking into active regen.

jmperlik said:

Some updates, observations, and theories from me on this DPF Auto-regen topic:
Based on all of the above, here are my theories on pontential side effects of these "Partial" DPF regens could be:

• I think what was happening before I was FORScan-enabled, I was never making it thru a full regen cycle regularly:
  
  • Since I only have a 15 minute 1-way commute, I would start a regen when I hit 100% full and always end up with a partial regen (need 20 "good" miles w/right conditions)
  • I have probably been operating in a consistent 70% to 95% DPF Full state for most of this oil change
  • This is exactly what my fear was (based on my driving routine/commute) and the reason why I bought my ODB adadpter + FORScan

Click to expand...

• 
  Yes, this same user experience was happening to me. Before I added DPF % Full to IPC, my tell-tale sign of this interruption of partial regen was the aweful smell from the truck when I parked in the garage in the during an active regen. Now that I have DPF % Full as well as OCR added to the IPC, I now feel empowered and in control of my regens and since then I have never parked the truck in the garage and had that aweful active regen interruption odor.
  
  

  jmperlik said:

  Some updates, observations, and theories from me on this DPF Auto-regen topic:
  

  • I believe that my ~21 MPG average is due to my driving patterns + near DPF Full condition, while my MPG "records" are highway miles where I start at 0% DPF Full after a full regen

  My guess is that @kdjasper's weekly 37 mile 1-way trip on Monday nights is providing the perfect therapeutic duty cycle for his DPF, hence why he's tracking to a 10K oil change interval.
  => I have no hard evidence this theory, but this is my first attempt at trying to postulate what could be causing the difference in oil change intervals for some of us here on the forums

  Click to expand...

  My overall mpg average on my truck's display is 21.4mpg--it was lower before I started taking control over the active regens and I have over 8,000 miles on my truck now, so to move the needle up with that many miles has me agreeing with you that the partial regen cycle was likely impacting the overall average. I only wonder what this would be reading had I controlled active regens from day 1. Of course I had winter diesel the last 5 months that also dropped my mpg's.
  
  I think the difference in oil change intervals for some of us is likely due to everyone's individual driving habits and the type of driving being done, % engine idle time, and potentially even the fuel being put into the tank as well as any additives being put into the tank ahead of the fuel up.
  
  

  jmperlik said:

  Some updates, observations, and theories from me on this DPF Auto-regen topic:
  My "Jerry Springer Final Thoughts" on DPF Full % and "Partial" regens:
  => I think the DPF system on our F150s are on a much smaller scale than our HD brethren requiring much more frequent DPF regen cycles
  => I think Ford should enable DPF Full % on the instrument cluster by default, as everyone who hasn't FORScan-enabled this are flying completely blind WRT to DPF Full %
  => I also think Ford should be exposing OCR (Operator Commanded Regen) for those owners who don't do a lot of highway driving
  => I may start using manual OCRs in the parking lot at work to prevent my Partial DPF regen "death spiral" and to see if they help improve my shorter-than-expected oil change intervals
  => My prediction is that the #1 ownership issue for F150 PS Diesel owners will be issues surrounding blocked/clogged DPFs with vehicles dropping into "limp mode" because owners have no OCR capability
  
  I will continue to monitor this closely to prove/disprove my theory and report back.

  Click to expand...

  I have never operated a Super Duty diesel, but I doubt the DPF system is any different.
  
  I agree that Ford should enable DPF % Full and OCR to the IPC from the factory--these are my 2 most important FORScan mods.
  
  Manual OCR's in your work parking lot? Have you watched the YouTube video of one being done on a Super Duty? Your co-workers in the building may call 911 because of the unexpected loud noise!
  
  Let's hope none of us ever drop into "limp mode" from our DPF systems, but I have a buddy with a RAM 2500 Cummins that had an issue with his DEF dropping him into "limp mode" and it took him a couple months to get that resolved.
  
  Sorry for the delayed response to all this, but it was a lot to break down and I needed a good nights sleep to tackle it and last night I finally got that sleep!
  
  Cheers!

@kdjasper - timely post as I also have been doing some research and fiddling with FORScan.

Here are my DPF Regen experiences since my last post:

• About ~8 days alter I saw I was near 100% DPF Full and caught a partial regen down to 70% DPF Full by the time I made it to work
• Was at 90% DPF Full last night and decided to play with disabling/inhibiting Auto-regen via the new option surfaced
  
  • Disabled/Inhibited Auto-regen about 8 miles from Interstate
  • DPF Full/Clean Soon messages about 4 miles from Interstate
  • Enabled Auto-regen as entering highway
  • Normal DPF regen (decrementing in 5% clips) for 15 miles
  • Got off the highway at 10% full (next exit was 6 miles away, so 12 miles would have caused me to get to 0% and start climbing on way back)
  • This exit required two (2) left turns where I had to wait 20-30 seconds for each red light before getting back on the highway
  • DPF Full % never dropped lower than 10% on my return back, therefore the delay at the two (2) red lights were enough to halt my current Auto-regen

Rather than guessing at what my average distance between DPF regens is, I went to the source:
Commentary on my specific readings from the screen capture below:

1. DIST_LAST_DPF (21.7 miles) = Distance to back home from where I turned around and active DPF regen ended
2. DIST_DPF_LAST_2ND (62.8 miles) = Partial regen where I only dropped back down to 70% during the week
3. DIST_DPF_2ND_3RD (146.5 miles) = Full regen from last bullet in My DPF Full % experiences in my Post #40 above
4. DIST_DPF_3RD_4TH (136.7 miles) = Full regen from 2nd bullet in My DPF Full % experiences in my Post #40 above?
5. DIST_DPF_4TH_5TH (54.1 miles) = Obvious (now) Partial regen
6. DIST_TRVL_EXFUL (3.7 miles) = Distance covered between DPF Full/Clean Soon and Re-enabling Auto-Regen
7. DIST_TRVL_EXOL (0.0 miles) = Goodness!

Based on the above:

• I am seeing Auto-regens more on a 150 mile interval (closer to @Laytunes in Post#41 above) for my somewhat "city driving" commute
• Auto-regen starts not very long after hitting DPF Full message (will be hard to "catch" this for a manual OCR w/o Auto-gen disabled/inhibited)
• Inhibited Auto-regen works as documented but you will start stacking up miles in DIST_TRVL_EXFUL (Distance covered between DPF Full/Clean Soon and Re-enabling Auto-Regen)
• Glad to see miles under DIST_TRVL_EXFUL or DIST_TRVL_EXOL are only miles from when I manually inhibited Auto-regen = Auto-regen system is working as designed!

I am debating about setting up my old iPhone 5S plugged in permanently as a FORScan monitor with all of the above and adding the four (4) EGT (Exhaust Gas Temperature) sensors.

I will post more findings as I monitor...

@jmperlik you rock man!!! Awesome research and find!

To comment on your experience noted above...I have seen where when I have delayed active regen with the Auto Regen checkbox unchecked in Settings, and then drove a few miles to the interstate and checked the box, that the max reduction I often get is 10%, although I saw 5% after a shut down and start up. If I don't defer the active regen, I am pretty much always counting down to 0%.

We are finally supposed to have a nice day in the north country tomorrow, and it looks like after I get my first oil change done I will be sitting in the truck for a while with the laptop to see what FORScan shows to me for my truck as you have shared above. I will post my findings over the weekend.

I absolutely love this forum and the research everybody does and shares to make us all more knowledgable about our 3.0's. It would be interesting with all we have learned to be back in the test drive seat to see what the salesman doesn't know that we have all revealed and learned to this point!

Here is mine regening today. I could immediately tell because EGTs shot up to 1000F. It ended in maybe 20 minutes, I was putting around look at a new neighborhood to build in.

Yes it’s real time monitoring thru iPhone.

Here is how Ez Lynk looks tuning the vehicle, pretty cool. All the tunes are fetched over the internet and available from tuner in seconds.

The attached photo below from my truck will support a direct comparison to @jmperlik post #46 in this thread.

My average regen is 251.0 miles according to the trucks computer.

My DPF_SOOT_LOAD is 5, whereas @jmperlik is 15? The description of this is "Soot Mass in Particle Filter". I wonder if this has anything to do with his truck regen every 150 miles compared to my 251 miles?

My DIST_TRVL_EXFUL = 58.4 miles, and this would be the miles I have racked up using OCR and unchecking the Auto Regen checkbox in Settings until I can get on a 20+ mile highway run to get a start to finish active regen cycle. I have used this capability quite a bit since implementing it, so a 5-10 mile deferment from regen to regen adds up to 58.4 so far.

Anyway, wanted to share this info from my truck on the forum in case others want to do the same and post for their trucks in order to see if there is anything to be gained by sharing this data.

@kdjasper - thanks for posting this very interesting information!

I was surprised to see that your average distance between DPF regens was more than 100 miles more than mine, but wasn't that surprised to see that you always take a full DPF regen, as I believe that your tracking to the 10,000 mile oil change interval is tightly correlated to this averaged distance/time between DPF regens. Given that you are tracking "spot-on" to the 10,000 mile oil change interval, I am using your truck as the "Patient Zero" control vehicle/sample to be compared against (since it is operating according to the desired engine design goal WRT to oil change intervals)

Now that I have the ability to monitor DPF Full %, I am being a more proactive to avoid partial DPF regens (something Ford obviously didn't want owners to "worry" about since they chose not to surface either DPF Full% or OCR even though both are available) If I had no ability to monitor DPF Full%, then I am just driving my F150 PS Diesel just as I would any gas-powered F150; i.e. what I have been calling "driving blind" mode. If you have no idea when your DPF regens (Full or Partial) are occurring, then I could easily see an owner showing a FORScan DPF-related PID screen capture where the distance between that last five (5) regens could be 50-60 miles for every interval.

You don't have to be an engineer to figure that a PS 3.0L diesel engine operating in such a DPF regen "death spiral" (Partial DPF regens every 50-60 miles) is not running as efficiently as a PS 3.0L diesel engine operating optimally with full DPF regens (starting at 0% Full after every regen) every 250 miles (as I believe @kdjasper is because he is tracking the 10,000 mile oil change design point)
= 50-60 mile average distance between regens ("driving blind" w/o knowing when I was near to 100% DPF Full) vs. 250 mile average distance (like @kdjasper) between Full DPF regens
= If I was not trying to plan full DPF Auto-regens (by taking 20 mile "blow-out" highway runs), I could be taking Partial DPF regens 4 to 5 times more often than @kdjasper does

While I was happy to see DIST_TRVL_EXFUL or DIST_TRVL_EXOL miles would have been zero if I hadn't disabled Auto-regen before my last "blow-out" highway run, this shows that the DPF Auto-regen system appears to be working as designed.

This doesn't negate that fact that I could be taking 4-5 more regens than an optimally operating "control" engine (like @kdjasper) and my theory is that this inefficiency shows up as reduced oil life as calculated by the IOLM (Intelligent Oil-Life Monitor) as I believe average distance/time between regens is one of the metrics in calculating your % Oil used:
=> Everything I have read about IOLM states it is a 100% software solution; i.e. there is no oil sensor monitoring how "dirty" you oil is
=> Based on this "Software-only" explanation, this tells me they are using other metrics to estimate engine oil "used" percentages
=> Running in a near full DPF condition constantly is more than likely pushing more soot past the rings into the engine oil thereby reducing Oil-Life
=> I am going to continue to monitor DPF Full % and schedule highway runs to attempt to always complete a Full DPF regen, along with monitoring Oil-Life %
=> If successful, I would hope that I can "extend" my Oil-Life % beyond the projected 3200 miles I am looking at for this oil change
=> If I am able to extend my Oil-Life % via managing Acitve regens, I think this will confirm my theory

I started shopping for iPhone car mounts and USB cables to permanently mount my old iPhone 5S as a FORScan Lite monitor to track these DPF-related PIDs.

I've got a bunch of long (for me) highways trips over the next 2 weeks where I hope to raise my "Distance between DPF regen events" average.

I will continue to monitor and report back any findings.

I have an update to my post #52 above. To make it easier for comparison, I have posted both the FORScan screenshot from post #52 and the recent capture from my truck this morning.

I should state that I started using Fuel Ox additive since post #52, which is supposed to reduce soot emissions and reduce regens by as much as 60%.

My average regen on April 20th was 251.0 miles, and that has now increased on May 13th to 292.0 miles--which appears to be a life of the truck maintained statistic. I can state that I have had a lot of highway mileage recently, in fact I just returned from a multi-state long weekend 1,155 mile road trip.

My DPF_SOOT_LOAD was 5 on April 20th (whereas @jmperlik was 15), and now on May 13th my DPF_SOOT_LOAD is 2. The description of this is "Soot Mass in Particle Filter". There seems to be a correlation here between this and the Average Distance Between DPF Regenerations. I'm not exactly sure what this means, but possibly Fuel Ox additive is having a positive impact on this.

My DIST_TRVL_EXFUL was 58.4 miles on April 20th, and this would be the miles I racked up using OCR and unchecking the Auto Regen checkbox in Settings until I can get on a 20+ mile highway run to get a start to finish active regen cycle. I initially used this capability quite a bit since implementing it, so a 5-10 mile deferment from regen to regen added up to 58.4 miles; however, in my May 13th readout I have 0.0 miles here as I have not been in a situation to do any Active Regen deferments in my last 5 regens.

Notice on May 13th FORScan screenshot the last 4 regens were triggered at the same distance of 300.1 miles. I know I read the Super Duty's have a forced regen every 500 miles if they haven't reached DPF 100% Full, and it looks to me like our 3.0 PS has forced regen every 300 miles based on this report--it is too coincidental to me that I would enter into Active Regen every 300.1 miles. I make this statement because I know for a fact I was watching the last 2 regens closely and they went into Active Regen at DPF 60-65% Full, so they went into Active Regen by the 300 miles being reached and not DPF 100% Full (on each of them I was expecting to get forced Active Regen at 500 miles like our big brethren Super Duty). In fact, after one of the Active Regens I drove 100 miles before 0% went to 5% Full, so I think Fuel Ox additive was reducing emissions as it says it does.

One fact worth mentioning is that on that 1,155 mile road trip, I did watch my last Active Regen more closely and I was averaging 23mpg's during the regen while traveling on adaptive cruise control 65-70mph, so I thought that was pretty good mpg's during an Active Regen.

My distance since last regen is 222.9 miles, and I am at 45% DPF Full, so I will likely be forced into my next Active Regen at 300.1 miles again. In some earlier post comments in this thread I mentioned Active Regen happening every ~325 miles, and when that was happening I am now convinced it was actually at 300.1 miles and it was just my interpretation of the starting and stopping of the regens. I would be really interested if anyones 3.0 PS is getting > 300.1 miles between Active Regens as reported via FORScan.

Another interesting comparison here is the Active Time Between DPF Regenerations. On April 20th I was at "24360 min" and on May 13th at "22140 min". Those min converted into hr 406 hr and 369 hr, respectively. I have no idea how to make any sense of this, I am just pointing it out because it jumped out at me as a change between the two readouts. I currently have 279 hours on my engine, so I am not sure how to interpret this data point.

Anyway, wanted to share this updated info from my truck on the forum in case others want to do the same and post for their trucks in order to see if there is anything to be gained by sharing this data.

Also seeing 300.1 mile max DPF range

@kdjasper - Ha! You beat me to the punch on the 300.1 mile Auto-Regen max observation, as I also have two (2) 300.1 mile regens in my last five, after adding another 300 mile round trip to the Hamptons this weekend. I was too tired to post this after I got home last night after midnight, but the second 300.1 mile Auto-regen happened last night on the way home. I also thought it was too much of a coincidence and was going to remark that I bet our DPFs have an automatic 300 mile range.

I have also read that the SuperDutys have a 500 mile Auto/Forced Regen range, so with the same observation between the two of us, I feel confident that this 300 mile DPF range is programmed in to Auto-Regen much like our larger SuperDuty Brethren do at 500 miles. This also confirms my suspicion that the DPF filter is a smaller version/setup of what is used on SuperDutys.

I didn't think I could do it, but I did raise my Average mileage between DPF regens (DPF_REGN_AVGD) to over 250 miles (will add screen cap later) and I continue to extend the mileage on this oil change to the point where I think I will make the 5K mark on this (2nd) oil change (FordPass app is down right now, so I can't check my Oil Minder % right now) This past month has probably been the most highway mileage I have ever done (and will probably ever do), so I think this will be my best DPF_REGN_AVGD that I will ever achieve.

@snowshew posted an interesting question about deferring the Active Regen until DPF 100% Full in the Mileage Report thread, and the response I provided there tracks well within this thread, so as much as I don't like to post duplicate information in multiple threads I think this is a case where it makes sense, so here goes...

snowshew said:

kdjasper
Have you considered keeping the OCR to off (or whatever keeps the active regen from kicking in) and blowing right through the 300 mile mark when the filter is indicating only 60-65 percent full?

Click to expand...

Interesting idea, and yes, that would have worked had I thought of it and did it. If I did uncheck the Auto Regen box in Settings in the IPC (Instrument Panel Cluster) I would have been able to likely drive ~500 miles before getting to DPF 100% Full and needing to re-check the Auto Regen box to enable the Active Regen to begin. (Note: for those new to the forum you have to add OCR (Operator Commanded Regen) capability to your truck's IPC via FORScan, and I have instructions on how to do that in another thread).

So, my long road trip was 1,155 miles, but to make the math simple let's say it was 1,250 miles instead. 1,250 miles would have had 4 Active Regens if reaching the 300.1 forced Active Regen trigger. Let's assume that each of those were triggered at an average DPF 65% Full. If OCR Auto Regen box was unchecked, DPF 100% Full would have been reached every ~460 miles (300/.65), or 2 Active Regens on this trip.

From my experience, the Active Regen usually cleans down 5% every mile on average, which is why it takes ~20 miles and ~20 mins to clean down to 0% from 100% DPF Full. (I watched an informative YouTube video yesterday where for Super Duty they say Active Regen takes anywhere from 20-40 mins of driving.) During the Active Regen process, I have seen fuel economy dip down to as low as 18mpg and I have also seen as high as 23mpg when it happens (on this recent trip).

The first approach with 4 Active Regens @ DPF 65% Full would equate to ~52 miles of the trip spent in a lower fuel economy state (13 miles per regen * 4 regens).

The second approach with 2 Active Regens @ DPF 100% Full would equate to ~40 miles of the trip spent in lower fuel economy state (20 miles per regen * 2 regens). Of course, once you got home from the trip 460*3 = 1,380 you would only be 130 miles max away (or less) from the next regen.

52-40 = 12 fewer miles on a 1,250 mile road trip spent in Active Regen. Let's say that those miles were sacrificing 5 mpg's, with 25 mpg not in regen and 20 mpg in regen. Those 12 miles not in regen would have used 0.48 gallons of fuel (12 miles / 25 mpg), and those 12 miles in regen would have used 0.60 gallons of fuel (12 miles /20 mpg).

So, if I did all this math correct, the savings of using OCR Auto Regen controls to stretch out the Active Regen cycles to ~460 miles instead of the forced Active Regens at 300 miles would have been 0.60 gallons - 0.48 gallons = 0.12 gallons of fuel @ $3/gallon = $0.36 cents of fuel savings here to have manually stretched out the Active Regen cycles.

Given that math, if I did it correctly, may explain why Ford is just forcing the 3.0 PS into Active Regen every 300 miles regardless of DPF % Full.

Here are some additional thoughts I have based on the prior post...

The use case for deferring Active Regens is not while driving down the highway over long distances just to avoid the 300 mile forced Active Regen, as there is no perceived benefit to doing this.

The use case for deferring the Active Regens is when you are nearing home and are just about to enter an Active Regen that won't have enough distance to complete down to DPF 0% Full before you pull in your driveway (I'd even say there should be several miles for cool down before you arrived home after the Active Regen had your truck back to 0%).

One interesting twist to consider here: there could be a case where you are returning from a long road trip and are 5 miles from home thinking you are all good because of being at DPF 65% Full, and wham you just hit the 300 mile mark since the last Active Regen and your truck goes into Active Regen @65% Full when 5 miles from home--this could actually happen! If this happened and catches you by surprise, unchecking the Auto Regen checkbox in Settings should abort the Active Regen that is underway and defer it until you re-check the Auto Regen checkbox (although I have not tested doing this yet, but it is supposed to work this way).