One variation of the active regen is the “parked regen.” This is where the driver or technician presses a button while the vehicle is stationary to perform an active regeneration. The other is an active regen event, which means the vehicle is injecting fuel into the exhaust system to create high temperatures. One is passive, which means that the DPF is cleaning itself - much like a self-cleaning oven - while you are driving down the road through heat built indirectly in the system. By now everyone understands that there are mainly two types of regen events that are run.
Diesel Particulate Filters (DPFs) have been around since 2007.
