Good paper - even B20 lowers the temperature at which the particulate oxidation equals particulate accumulation B100 drops it 200 degrees F. Running B100 and not babying it may result in no active regeneration events at all.bluesmoker said:
However, the DPF used in the test is a different design from the VW DPF. The test DPF is entirely passive - it relies on exhaust heat to oxidize the particulate. The 09 VW DPF "cracks" fuel on a diesel oxidation catalyst, releasing heat into the exhaust stream during a regen event. The question remains whether the post-injected biodiesel will react with the catalyst the same way that diesel does, or will it pass uncracked right onto the filter material?