There is no magic speed where the DPF will be able to naturally burn off soot. It relates to temperature. The DPF will start to burn off soot slowly at a certain temperature.I have had many diesels and never had a problem with build up. My question is with the Jeep diesel does it clean when you run over 55 for a hour or send a message to run over 55 when needed
I have a OBD Veepeak scan plug and the Fusion app on my phone with a dash setup I downloaded from here (that was from ram ecodiesel). I says DPF% but I dont know how accurate it is. It shows when a Active or Passive regen happens. Passive happens a lot, basically when ever your not idling. Active regen I have only see twice in the last 800 miles I have used it. The first was when the DPF% got to 80% which was also while towing. After it went to 4%. Second time happened today while it has be at 100% for the last full take of fuel (weird). I was only going 45mph and it started. After 10 minutes I came to a stop sign and it said 14%. It did not start back up once I go going again. seem sporadic when the full Active regen happens.