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It basically uses the exhaust heat to catalyze the unburnt fuel "clumps" in the "DPf". Problem is the temp for this to occur is above typical aluminium melting points, so they add fuel somewhere. In a diesel you have masses of extra O2, I would think they add air somewhere in a gasser.
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casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
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