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Old February 21st, 2018, 16:35   #22
TDIMeister
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Join Date: May 1999
Location: Canada
TDI(s): TDI
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Search here and in Google using keywords "cerium dpf" and "eolys". These are additives that reduce the activation temperature for the DPF. Note however that VW doesn't sanction the use of any such additives, and there are questions and concerns about heavy rare earth metal - which Ce is - mining and accumulation in the environment.

Edit: When all is said, there's nothing better than proper maintenance and driving schedule that allows the DPF regeneration always to complete. Driving short distances is death for Diesels, even pre-DPF ones. Sorry to say, but choosing a right car for the job is a good principle to follow, and if your usage habits are biased toward short trips, it would be better just to get non-Diesel car.
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Last edited by TDIMeister; February 21st, 2018 at 16:41.
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