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Old February 25th, 2018, 20:08   #24
Veteran Member
Join Date: Apr 2001
Location: Southeast Texas
Fuel Economy: 37 MPG (~ 45% city)

Originally Posted by TDIMeister View Post
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.
Thanks for the reminder about Cerium. I realize that I posted on this topic a while back with some more background information and usage in Europe:

Perhaps the fact that products such as this one are not available in the US is because they contain Cerium and are not allowed by the EPA.
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