Originally Posted by psdstrkD95
I disagree with it being OK. I have a subscription to diesel power and last month of the month before month they got a letter from a head honcho for engines at caterpillar or something. He said fuel does not clog dpf's it burns completely off in regen(makes perfect sense it burns completely in the combustion chamber as well). What clogs the DPF according to him is the ash generated by the oil(which gets put into the exhaust in trace amount from cylinder walls, etc). This fact is reinforced but the fact a lot of diesel oils say "low ash formula". So IMHO I would try to drain it? or replace it? But if its running fine then drive on cowboy just passing on what I know.
If it burns completely in the combustion chamber a DPF would not be needed. That black smoke is un burnt fuel. When it goes through the DPF it will burn it down to ash. So overtime the DPF will fill. Im not a caterpillar honcho, but i did stay at a Holiday Inn last night.