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50 mile regen?

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Old Nov 10, 2018 | 07:19 PM
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50 mile regen?

Has anyone had a regen last for 50 miles? Today my dpf status was at 90% full but I new I would be hitting the 500 mile mandatory soon, so I switched to my instant mpg monitor. At about the 510 mile mark I started the regen. About 35 miles I switched to the dpf gauge and it was at 0%. I went back to the instant mpg gauge to see when my regen would stop, and it went on for another 15 miles. I have never had a regen last more than 30 miles. I had the cruise set at 70 mph the whole time. I was not towing or hauling anything. Just wondering if anyone else experienced or heard of this.
 
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Old Nov 10, 2018 | 07:54 PM
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Was it cold outside? And travelling at fast speeds causes the heat to disipate faster which can prolong a regen. I've found I can complete a full regen in about 10 miles or less in city driving.
 
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Old Nov 10, 2018 | 08:03 PM
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Originally Posted by cficare
Was it cold outside? And travelling at fast speeds causes the heat to disipate faster which can prolong a regen. I've found I can complete a full regen in about 10 miles or less in city driving.
Yes it was cold. About 28 degrees. It was my 1st regen below freezing.
 
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Old Nov 12, 2018 | 01:10 PM
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It seems strange that if the DPF % is at zero then the regen should be done. Lots of regen Voodoo going on under the covers.
 
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Old Nov 12, 2018 | 02:04 PM
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With cold weather and no load, this doesn’t sound outlandish to me either. Totally plausible.
But, I also agree with the regen voodoo comment above. It’s an engineering feat to understand the basics of the regen.
 
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Old Nov 12, 2018 | 03:53 PM
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Originally Posted by HRTKD
It seems strange that if the DPF % is at zero then the regen should be done. Lots of regen Voodoo going on under the covers.
With a Forscan, you can see the games played with the dash display. 99% to 103% shows 99% on the dash. 30% to 95% shows the actual value, rounded up to the nearest 5%. A hair below 30%, the dash drops quickly to 0%. I dont know the exact mapping, but it drops to 0% around 25% for the scanner value.
 
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