Exhaust filter
I have my 2011 duramax, 60K miles in the second time in a month for the cleaning exhaust filter message coming on and not going out. First time they said it needed a manual regen. Cost me $300. Don't ...
Forum Discussion
There is active Regen where the truck burns fuel to clean the dpf via 9th injector and there is passive Regen where the truck is towing / hot enough for the dpf to bake off on its own.
