Auto Regen Turned Off
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Postmaster
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Auto Regen Turned Off
Sorry this is not a floor mat or what will Ford do to a future model truck topic. I know people like those on here. Lol (extreme sarcasm, sick of those)
I had the dealer enable my DPF % screen and give me the ability to turn auto regen off on the setting screen. I have noticed that my truck will start regening as I’m driving down the highway even when my DPF % reads 0%. I can tell it entered regen because my fuel mileage drops drastically. I’d assume this would be the auto regen at approx every 500miles. What a waste of fuel. So anyways, today I noticed my fuel economy starting to go down the toilet as I was 500kms into my 1600km Drive (300 miles, 1000 miles for my Americans out there) so I went and turned auto regen off and the my fuel mileage went back to normal. Immediately I went and turned the auto regen function back on and it did not resume with the useless regen. I think it’s awesome I can stop that 500 mile auto regen when I don’t need to regen. If you have FORScan or a good dealer, I recommend enableing this mode. This mode will also let me do manual regens if need be. I end up getting stuck up in areas in the northern Canadian oil fields for weeks where we only drive about 100km a day, all at a max speed of 40km/hr and the truck idles all day. I needed to be able to control regen if needed. (2018 F-350 Limited)
I had the dealer enable my DPF % screen and give me the ability to turn auto regen off on the setting screen. I have noticed that my truck will start regening as I’m driving down the highway even when my DPF % reads 0%. I can tell it entered regen because my fuel mileage drops drastically. I’d assume this would be the auto regen at approx every 500miles. What a waste of fuel. So anyways, today I noticed my fuel economy starting to go down the toilet as I was 500kms into my 1600km Drive (300 miles, 1000 miles for my Americans out there) so I went and turned auto regen off and the my fuel mileage went back to normal. Immediately I went and turned the auto regen function back on and it did not resume with the useless regen. I think it’s awesome I can stop that 500 mile auto regen when I don’t need to regen. If you have FORScan or a good dealer, I recommend enableing this mode. This mode will also let me do manual regens if need be. I end up getting stuck up in areas in the northern Canadian oil fields for weeks where we only drive about 100km a day, all at a max speed of 40km/hr and the truck idles all day. I needed to be able to control regen if needed. (2018 F-350 Limited)
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Regens don't resume. If you're at 99-percent and you just start a regen that gets you down to 95-percent at which point you shut off the truck, that is a successful regen. So, the regen strategy is essentially to get the truck to less than 99-percent. Whether that gets you to zero isn't part of the strategy. It won't start another regen until the system reaches 99-percent or the 500 mile from last regen mark.
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Postmaster
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Ok guys. Here is some information on regeneration cycles. You have two regeneration cycles that occur, passive and active regeneration.
1. Passive -- This occurs when the load and speed of the engine produce temperatures greater than 350 degrees C, and it burns off the trapped soot as the vehicle operates.
2. Active -- If the duty cycle does not produce high enough exhaust temperatures, the DPF becomes loaded with soot, which is indicated by its pressure sensors. Active regeneration is then required.
On my 1000 mile drive the truck wanted to enter into active regeneration every 500 miles which was not required due to the truck meeting passive activation standards. The automatic 500 mile active regeneration is a failsafe for those who do more city driving and idling which will not meet passive activation parameters. That being said, active regeneration was not needed in my situation. Would you run your dishwasher on a load of clean dishes? No, It wouldn’t make sense so why would I increase my egts and waste fuel on an already clean filter? Inhave had DPF systems on multiple vehicles and deleted my last system before I took delivery of the truck. Oil changes every 6000 miles up 180,000 miles before I traded it off and the old oil at every change looked like I was draining new clean oil, not black at all. There is a huge advantage to doing a delete.
Long post but hopefully informative for those those who are new to DPF systems.
1. Passive -- This occurs when the load and speed of the engine produce temperatures greater than 350 degrees C, and it burns off the trapped soot as the vehicle operates.
2. Active -- If the duty cycle does not produce high enough exhaust temperatures, the DPF becomes loaded with soot, which is indicated by its pressure sensors. Active regeneration is then required.
On my 1000 mile drive the truck wanted to enter into active regeneration every 500 miles which was not required due to the truck meeting passive activation standards. The automatic 500 mile active regeneration is a failsafe for those who do more city driving and idling which will not meet passive activation parameters. That being said, active regeneration was not needed in my situation. Would you run your dishwasher on a load of clean dishes? No, It wouldn’t make sense so why would I increase my egts and waste fuel on an already clean filter? Inhave had DPF systems on multiple vehicles and deleted my last system before I took delivery of the truck. Oil changes every 6000 miles up 180,000 miles before I traded it off and the old oil at every change looked like I was draining new clean oil, not black at all. There is a huge advantage to doing a delete.
Long post but hopefully informative for those those who are new to DPF systems.
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Paddy Whacker
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Jan 16, 2005 10:53 PM
