If a journey is too short, the regeneration can’t be completed so the warning light will continue to appear since the DPF is still partially blocked. If this is the case, driving for 10 – 20 minutes at speeds greater than 40mph, you could complete a regeneration cycle and clear the warning light.

Blue smoke does emit due to dpf regeneration. Blue smoke due to dpf regeneration means that oil is getting in the engine. This is usually caused if the piston rings are worn out. It may also occur if you have poured more than the required amount of engine oil. Black smoke: Black smoke might be emitted for dpf regeneration.
When the soot accumulation reaches a level that is potentially damaging to the engine or the exhaust system, the solution involves a garage using a computer program to run a regeneration of the DPF manually. When a regeneration occurs, the soot is turned to gasses and ash of which some remains in the filter.
You get better combustion, faster more efficient burn and a dramatic reduction in soot. Less soot = Less need for DPF regeneration. That’s how DPF Remedy solves DPF problems starting with the first tank of treated fuel. Many of our clients have seen daily regens go to weekly or monthly regens.
The regeneration process ‘cleanly’ burns off the particulates/soot with a DPF able to reduce particulate emissions by around 80% compared with your diesel-powered vehicle not having one.
Depending on your driving, active regeneration may happen as often as once a day. If you do a lot of stop and go, it can happen even more often. Frequency depends on duty cycle and how much soot collects – as often as once a day or every other day An active regeneration could take up to one-half hour or more. P3J68s. 575 156 157 267 269 582 971 450

how often does dpf regeneration occur