Quote:
Originally Posted by shimon340
. . . having worked on dpfs ( research dept ) I think I can help out here.
Basically, the diesel particulate filter ( dpf ) is effectively a fine mesh placed in the exhaust. It catches diesel particulates (soot). The filter is also coated with some metals which act as a catalyst to burn the soot. The catalyst lowers the temperature at which the carbon / soot combusts. This therefore removes the soot from the exhaust, lowers the vehicles particulate emissions and therefore allows compliance with Euro 4.
. . .
S
|
This post of Shimon's and his several following posts are very illuminating.
If you think a regeneration is needed or will be soon, but don't have a high speed run planned soon, and you are in a relatively low speed run, can't you just drive in a lower gear to get the engine rpms up to the needed level? I know this will use more fuel than one would like, but if the alternative is a clogged DPF, then it would seen to be the correct thing to do.