ALL 6.7L engines will do a Passive Regen if conditions are met. Mainly your exhaust temp in the DPF must exceed 572°F Of course the hotter the exhaust temps the more efficient the Passive Regen.

23 and newer engines, especially the HO, run hotter and produce hotter Exhaust Gas which does a lot of Passive Regens. But the 23 and newer truck do Active Regen every 497 miles. Regardless of what percentage the DPF shows, My trucks kicks into active regen at 497 miles even when it only showing 10-15% DPF. And I rarely see my DPF get higher than 30%. I would venture the 23+ trucks have a more efficient passive regen.

Yes your fuel mileage will drop a little during active regen. Friday I had 45 miles on a new tank of fuel, my trip was reading 20.0 mpg average. Active Regen started, my fuel instant fuel mileage dropped to 14-15 mpg and when the regen was done, 10 miles later, My trip was showing 18.6 mpg average. Luckily it only last for 10 miles and I don't see it again for 500 miles.

Here is my Edge CTS, You can see bottom left corner is my distance from last active regen (497) and bottom right is distance from last regen (499 miles ) since it was two miles into this regen before I snapped the photo.



You can see here my typical Exhaust Filter % at 30% when truck usually goes into Active Regen

 

Appreciate all the info on these 23+ trucks... thanks... makes me want one...

 

If they weren’t so expensive…

 

 

This is my question. I hear things like idle puts fuel in the oil, regen puts fuel in the oil, which one is it? What if I high idle? How much fuel does a regen use and how much of it ends up in the oil????

 

my work trucks all have the komifornia clean idle stickers on them. We don't idle too much, the 2012 truck I have now since the 22 ram gernaded it's transmission at apx. 7,000 miles.
IIRC this one is between 20 and 30% idle time, no engine issues.
other trucks on the fires I am on idle 14 hours a day every day. No one ever talks about issues.
in my humble opinion, drive your truck and enjoy it.

 

That's what I do. I'm at about 20% idle time. Truck is there to pull, keep me cool/warm depending on the weather.

I just feel like if the 9th injector was that much magic Ford would have went to it a long time ago. We need an oil analysis from one of these ninth injector trucks to see what the oil dilution is like.

 

Idle doesn't dilute the oil, it just fills up the DPF with soot, the Regen at highway speeds doesn't dilute the oil either, but Regen at city traffic speeds will. City driving in general can foul the oil because the engine doesn't get a good consistent heating like it will when on the highway.

It's like the Ecoboost engines. They LOVE highway driving, hate city driving. They are especially bad with stop and start city driving with short trips. Since majority of my driving in the truck is highway speeds, my regen can go over a thousand miles before being done. It does take about 30 minutes at 60 MPH to complete from 100% in my 2019, but doesn't get hot enough either to do a passive.

 

Do you do oil analysis on any of these trucks? I never worried about it until I tried oil analyzers (always used Blackstone). Blackstone says no oil, Oil Analyzers says 5% fuel (not sure I believe that either). I would see that much fuel on the dipstick....

This stuff does NOT keep me awake and night, just makes for good discussion. I love and use my truck!!!!

 

I did a sample on the 16 truck last Year when I was chasing regen issues.
I will see if I posted it in my thread.
but also our 16 truck has the lowest idle time percentage, it goes to Minnesota and Montana every year.

 

My 23 just turned 15,000 miles . I’ve noticed that the dPF does get a little higher in percentage leading up to a regen than it did before . It used to stay at 0 until the last 100 miles or so then slowly creep up to 20-30% then regen . Now with same driving it starts building up earlier and I’m sitting at 40% currently with about 100 miles to go. I figure when they are brand spanking new it’s pretty darn clean then as you put on the miles it probably builds a little quicker . I’m pulling 16,000 pounds tomorrow so it will be interesting to see if it does a little passive regen before the main event .

 

Be safe out there Bart with those wild fires brother.

 

My truck is a 2023 HO, I do a 100 mile daily commute to and from work and haul horses a couple times a week, here is my Oil Analysis

 

well fo some reason I can't link a post from my other thread with my phone.
but the oil sample was negative for fuel.

 

Mine were just sent in last week, so will be a while before I know if doing 11K oil changes has any negative impacts. I am more concerned about my Ecoboost samples since the Flex has 181K miles on it. The chain is starting to slap a bit on cold starts.