Not sure what you're saying here. The dash will show 0% while the Scangauge will show 90%+.
That means you are approaching a 24 hour based regen. 90% on the SG with 0% on the dash means it's been 21:36 since your last active regen completed.
The SG shows the higher of either soot loading or the 24 hour clock, which is why you need to reference the dash gauge to know for certain which one it is. If the dash gauge is on 0% and the SG is >60% then it's a time based indicator at that point. Below 60% it can be soot or time, or bounce back and forth. It doesn't really matter at that point since the truck isn't nearing an active regen.
As soon as the Scanguage hits 99% it regens. The dash guage will show say 50% and the Scanguage shows say 25%.
There could be some rounding differences with the SG, but the truck won't regen until 100%.
If the dash shows 50% it's gone past the normal trigger for a soot based regen of ~45% (noticeably less than 50%, but indiscernible what actual percent its at). That's not a good thing.
The SG won't show 25% with the dash at 50%. With the dash at 50% the SG will be at, or very close to, 100%.
I have no idea what the dash guage actually does since it doesn't seem to cirflate to anything.
It's a very poor indicator of soot loading, nothing more, but it will accurately indicate 2 things. 1st if you start a regen with the dash gauge any lower than ~45% it's a 24 hour based regen, period. 2nd if you are at ~45% on the dash gauge and a regen starts it's a high probability that it's a soot based regen. (I say high probability because I did see one 24 hour based regen start at the same time the dash gauge went to ~45%, but only once).
Anyway, I don't care about any of that. Something else must have changed to fix the problem. I fail to believe it was solely the oil change.
I can assure you the truck has NEVER made it to a 24 hour regen. It's been as bad as only 30 miles before.
Yet you have claimed it has made it to a 90% regen on the SG with 0% on the dash, which can
only indicate a 24 hour based regen is approaching. You also told us in post #1 of this thread the longest you've seen between regens is 18:49, but then gave us an example where it was over that number and still hadn't regened at 21:36.
Something is awry with your posted data, which is why you should care about it. If you don't understand the data you're seeing then your conclusions aren't likely to be accurate.
The worst on the new DPF has been around 120, the best 844 miles.
Miles are immaterial to regens. Hours are the important thing to track. I've had 24 hour regens only log 197 miles and had them log 1302 miles.
