2012 F250 Lariat FX4. Daily commute is approximately 150 miles roundtrip with almost all of it highway between 60-78 mph. Averaging 2 regens a tank driving this daily (no trailer)

Is that frequency about right? Just moved homes and this longer commute I thought it would be less.

Thanks

 

That's less than some, more than others.

The shorter your highway running time is, the more it will go into active regen.

I run almost all long distance highway miles, half towing, half bobtail and get very few active regen cycles.

 

My commute is 27 miles each way for work and about 90% highway between 60 and 70 mph. I average one every 500 to 600 miles (one per tank most of the time, two every so often since I have a 650 mile range on a tank).

 

My 2011 regens once per tank of fuel based on how I drive when not towing. Thats some city driving, and 50 miles per day of highway driving.

 

My tank average mpg is steady at 18.7-19. Stock Michelins no lift. Seems like my regen freq is a bit higher but my mpg seems to be real good. It gets a boost on the section of the commute where you run 45mph in 6th gear. Maybe that portion is causing the soot level to rise even tho the mpg is thru the roof on that portion

 

I regen around 100 miles. Dealer has said no lights no problem will not look at the issues. That's with it finishing the regens. So I am in regen 15 to 20 percent of the time.

Need help.

 

If it was my truck, I'd replace all four of the EGT sensors in the exhaust. they are about $35 each online at Tousley Ford. Just prior to me getting a CEL, my mileage was horrible, and it went into regen a lot of the time until the very end, and it wouldnt go in at all. Lucky, I had a CEL that pointed to EGT12, which I replaced, and my regens started again, but more importantly even prior to the first regen, my mileage went from 12-13 to 17-18.

Not saying it will fix your problem, but you do know for sure things stink the way they are now, and the PCM takes those exhaust temp readings and optimizes fuel input to keep pollution down. I plan on replacing the other 3 shortly.

 

2 regens per tank is about OK. Anywhere between 50 and 600 miles is normal depending on driving conditions, driving style, axle ratio and loading.

I've work with 3 of these trucks and have only seen over 300 miles between regens on winter fuel with ALL highway miles. All 3 trucks (2 are 2011's and 1 a 2012) are nearly identical as far as regen frequency goes.

What's interesting is that I've asked several 6.7 owners in my area about their regen frequency. About a third of them didn't know what I was talking about. Another third reported that their truck "has only done it once in the past year or so, and finally a third see about the same frequency that I do.

Go figure!

 

Mine regenned on the way home yesterday and again on the way to work this morning, but had been averaging approx 300 miles between. 17 miles each way to work and back with 12 of them at 65-70 mph.

 

Just my 2¢

My 2013 F350 has a 3.31 rear end and at 65 mph my EGTS don’t get hot enough for a Passive Regen when driving empty. So at 45 mph I assume that yours wouldn’t.

I just started monitoring my soot level and see a few things happening. When driving through the city my EGTs never go above 600 degrees and they have to for the truck to have a Passive Regen. If you have and Active Regen and don’t complete it but reduced the Soot Level, your PCM will set a mileage counter to attempt another Active Regen in 150 miles.

Example: Yesterday on my way to work it was 98 miles since my last complete Active Regen and my Soot Level reached 100% just before I got there and my truck went into Active Regen and had to stop it. When I left work my Soot Level was below 80% and Distance Since Last Complete Regen (DSLR) showed 380 miles. My guess is that I’m going to pull my trailer tomorrow and a Passive Regen is going to reduce my Soot Level and in 120 miles my truck is going to attempt an Active Regen??

I’m just guessing because it is one of Ford kept Ideas!!
But I see so far that if my Soot Level reaches 100% my truck will attempt an Active Regen, if my DSLR reaches 500 miles and the Soot Level is over 80% then my truck will attempt to start an Active Regen. I purposely stop three Active Regens to see and got a Wench Light. Which means basically the truck was forcing me to complete an Active Regen (I did and the Light cleared).


Sorry about the length, I’m not an Expert.

Your frequency can be normal if you are sure you’re completing the Regens, but like I stated above, your PCM will tell you if you have a problem.

donavan:
From a cold start driving short trips back and forth to work (10 miles) through the city, my Soot level can reach 100% at around 100 miles since my last Regen. If I take the bypass (highway) around the city, although it is 2 miles longer, my Soot Level doesn't increase half as much, I use less fuel and it takes less time. If I didn't monitor Soot Level, I'm sure this wouldn't matter to me LOL. If I hadn't had a 6.4L, I wouldn't worry about residual ash buld up in the DPF, but thats another rant.

 

donavan:
From a cold start driving short trips back and forth to work (10 miles) through the city, my Soot level can reach 100% at around 100 miles since my last Regen. If I take the bypass (highway) around the city, although it is 2 miles longer, my Soot Level doesn't increase half as much, I use less fuel and it takes less time. If I didn't monitor Soot Level, I'm sure this wouldn't matter to me LOL. If I hadn't had a 6.4L, I wouldn't worry about residual ash buld up in the DPF, but thats another rant.[/QUOTE]


I agree that I don't see passive regen without speeding(80 MPH). I do have the 331 gear set. I also do long non towing runs I get up to 150 driving empty without stops. If I am towing the regen are every 600 miles and my soot level before the regen is below 10 Percent. I monitor it with the Edge insight. I let the regen finish most of the time. I don't count the regens that don't finish. Funny thing is I would likely not care if I did not have the edge insight, I simply would not know.

When someone state they see regen far greater then my own, is when I start to think about why.

 

My problem is the regen program is linked to the GPS in the truck. For some reason it knows to always start one when I am within 1/4 mile of my house and on the way back to it... So it has to go into regen AGAIN once I leave the next time.

 

Heh, mine does that to, only it gives me a couple miles. Got all the stuff to delete just haven't done it yet.

 

I'm new to diesel truck engines (but not diesel off-road) so I have what may be a simple question; How do I know/tell when my new 6.7 goes into regen?

Also, why should I even care?

Thanks,
Dave

 

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.