When I bought my truck, due to REGEN issue some were having, I immediately bought the Edge Insight CS2, to monitor Soot levels. This way you can take care of the issue before you get the 80 percent full.
REGEN will start at about 65 percent. The EGT 2 and EGT 3 need to push the temperature over 1000 F to 1250 F. This won't happen, if your engine is cold, doesn't reach normal temperatures. You drive it like that, you will then get the EVIC Filter notice.
During summer weather and I average 100 km per day in city driving (contractor), no issue, the truck firmware handles it well. (FYI: REGEN distance between REGEN in city about 90km and over 200km on highway.)
However with the winter weather, it can become an issue. First of all, it takes about 30km for my radiator temperature to come close to normal temp (200 F) If it below that, like 2/3 warm, even though it calling for REGEN, it won't happen, because the EGT 2 and EGT 3 temperatures are under 1000 F. Just to cold of an engine to push for temperature over 1000 F.
If you never let it warm up, frequent stop/park, you will climb very fast to Soot levels over 80 percent. In fact, when cold, soot levels will climb 1 percent every mile or so. Also long idling/warmup raises soot level fast and ruin your fuel economy.
Solution: First of all, I'm going to check to see what season my Thermostat is and to be sure the thermal control shutter are working properly. If all okay, I may look at getting metal grill covers for the lower vents. Upper vents when -30c. According to other, it works.
Still, that is an oversight, as FCA could have added shutters for the whole radiator. Cheap, cheap, cheap FCA....... money first mentality.
Another concern, not knowing if you are doing passive REGEN (no indicators at all) (Active REGEN is when you get EVIC message). If you shut down your engine in a middle of REGEN, you will cause damage/warping to components, plus odours will occur. If you experience odours than it happen to you. Eventually a visit to the service department. The solution without having a monitor, is to idle a few minutes before shutting down to park. This info is in the truck manual.
So far, at 12,400 km, no issue and just yesterday, I added 10.00 of DEF at Flying J truck stop (bulk) for the first time. I was near empty/ needle at first white line, The 12.5 litres brought me to 3/4 full. I was aiming for 1/2 full, but had to prepay first. Like to keep DEF fresh, who know how many miles I be traveling this winter.
