[asagaai]

A lot of the earlier dpf filters were placed along the exhaust pipe a long way from the exhaust manifold, which meant gasses cooled somewhat and did not clean burn the dpf filters.

Better design has the dpf filter situated almost as part of the exhaust manifold so that the filter is exposed to the hottest air to help clean out the dpf filter.

I have a Honda Civic 1.6 turbo diesel that has done 85,000 km and no problems, never a dpf regen light despite my wife driving city urban-touch wood.

But I am with Jim, I will not go diesel again, the potential dpf and injector costs are too great a risk.