When I had a DPF, 10 minutes of ideling time would set off the OHC saying catalist full, see owners manual. Since that thing fell off after hiting a cattle gaurd, Its ideled more than its been drove. No soot to speak of and no smoke and stink.
I think that story is bunk.
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07.5, 6.7L, 3500 quad, single, long, 4x4, six speed gear grinder, Air Raid intake. DPF-R delete, unpluged EGR.
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