How fast does your DPF fill?
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Tuned
Joined: Oct 2005
Posts: 355
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From: Kansas
How fast does your DPF fill?
This is a 2012 F-250 6.7. Recently I enabled the DPF% screen in my IPC with Forscan. Of course in doing so it made it very interesting and easy to keep track of when the DPF fills and cleans and how fast of course all that b-s. So on average it has been cleaning every 300 to 400 miles. I don't do much towing and drive a lot of back roads.But! what got me concerned was after the last cleaning it was filling faster that normal cause in 100 miles it had already filled 50%! My question is should I be concerned about this and is my DPF fixing to give me problems, possibly.?
I appreciate any help!
I appreciate any help!
FTE Legend
Joined: Mar 2017
Posts: 31,830
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From: Western NY
I'm 360 ish miles out from my last regen but my factory DPF screen is not enabled yet. I watch my Banks iDash 1.8 for that. I'm at 40.x%. But I do a lot of expressway driving with hills so mine go out at least to 440 miles or so. When I drive in the city more, my soot load climbs up quicker. I've been seeing 21, 22 and 26 mile regens. As for the intervals, I'm out at least 430 miles and one got close to 500 at 485 miles out. It seems as some trucks do better than others but I believe it depends on the driving habits of the owner plus other factors I'm sure.
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Tuned
Joined: Oct 2005
Posts: 355
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From: Kansas
I'm 360 ish miles out from my last regen but my factory DPF screen is not enabled yet. I watch my Banks iDash 1.8 for that. I'm at 40.x%. But I do a lot of expressway driving with hills so mine go out at least to 440 miles or so. When I drive in the city more, my soot load climbs up quicker. I've been seeing 21, 22 and 26 mile regens. As for the intervals, I'm out at least 430 miles and one got close to 500 at 485 miles out. It seems as some trucks do better than others but I believe it depends on the driving habits of the owner plus other factors I'm sure.
FTE Legend
Joined: Mar 2017
Posts: 31,830
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From: Western NY
Thanks for the input. You mean 21 to 26 mile regens as in taking that many miles to clean I guess? That is about the same for me it takes anywhere from 20 to 30 minutes to clean. It just got me to wondering why it filled 50% in 100 miles this time. I haven't drove it much the last couple days but it had slowed down on how quickly it filled, assuming that may be the norm I just never knew it cause I wasn't able to monitor the percentage. My idea was to just pull the thing off ream it out and then stick it back on. I have fears about big government/EPA getting insane on emissions and go nationwide on testing in the near future.
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Tuned
Joined: Oct 2005
Posts: 355
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From: Kansas
No problem. Yes, I meant the regens lasted those amount of miles. What else I have done which I believe help keep soot down is keep it in T/H mode, for city driving I lock out 5th and 6th gear so I am driving with 1 to 4 gears only, the country roads I drive it's 40 or 45 mph so then I unlock 5th gear and I don't use my EB as much coming down the big hill before my house on the way home unless weather dictates it. I found that by driving in 1 to 6 without T/H on, the trans shifts into the higher gears way too soon and causes the engine to lug at low RPMs in the higher gears which must cause more soot. I understand your concern with the EPA for sure.
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FTE Legend
Joined: Mar 2017
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From: Western NY
I use tow haul on country roads a lot it does seem to help but this current fill has me puzzled. It still hasn't filled as I have been driving it very little right now, wintertime and the roads are bad. Thanks a lot for your input I guess I won't worry about it till it becomes a real problem. AT that time it is getting a R&R and a rape job!
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Thread Starter
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Tuned
Joined: Oct 2005
Posts: 355
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From: Kansas
Well I don't mean I use it a Lot just in hills sometimes I use it when I am putting around on country roads which is quite a lot of the time. And yes I'm talking about the DPF filter. Gonna give it a ream job one of these days. Still haven't figured out how to delete the EGR and leave it looking on and looking stock.
Redford my last fill-up was at Cenex but you're right maybe it is just bad fuel.
Appreciate the input!
Redford my last fill-up was at Cenex but you're right maybe it is just bad fuel.
Appreciate the input!
Super Moderator
Joined: Aug 2008
Posts: 37,375
Likes: 1,861
From: Frederick, MD
There are a lot of variable's with the amount of soot that can be produced. So based upon your use, quality of the fuel or other factors it can load up quickly. There can also be long or short regens based upon those same factors.
So overall, on average is what is a determining factor of what is normal for your truck as a whole.
So overall, on average is what is a determining factor of what is normal for your truck as a whole.
Thread Starter
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Tuned
Joined: Oct 2005
Posts: 355
Likes: 0
From: Kansas
There are a lot of variable's with the amount of soot that can be produced. So based upon your use, quality of the fuel or other factors it can load up quickly. There can also be long or short regens based upon those same factors.
So overall, on average is what is a determining factor of what is normal for your truck as a whole.
So overall, on average is what is a determining factor of what is normal for your truck as a whole.
Junior User
Joined: Jul 2003
Posts: 67
Likes: 2
From: North Georgia
About every 200 miles...
...until I deleted it last spring. Go ye and do likewise, if you can. I had a broken Y-pipe, and one thing led to another.....
Yes, mine is 2008, but I just saw a 6.7 with a very sanitary delete. Yes, I'm not in an emissions - testing area.
Yes, mine is 2008, but I just saw a 6.7 with a very sanitary delete. Yes, I'm not in an emissions - testing area.
Thread Starter
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Tuned
Joined: Oct 2005
Posts: 355
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From: Kansas
Super Moderator
Joined: Aug 2008
Posts: 37,375
Likes: 1,861
From: Frederick, MD
It is not the RPM's, It is the EGT's that count.
So unless you can monitor those and get EGT 14 in the 550F range so you can passively regen, the RPM's won't help.
I get not lugging the motor, thus hopefully producing less soot. Any chance of monitoring your temps?
So unless you can monitor those and get EGT 14 in the 550F range so you can passively regen, the RPM's won't help.
I get not lugging the motor, thus hopefully producing less soot. Any chance of monitoring your temps?