not-bono-ever
meh
The same really. As long as you don't clog the DPF there's not much difference.
Agreed- filter and oil once a year and as long as you thump the engine to get the DPF self cleaning now and then, then its no hassle. an hour on a M way once a month would keep the DPF clear- but sitting an average of 7mph in central London all day every day would not do it any good.
If you had to sart fucking with head gaskets and suchlik, then diesels are expensive, but they are bench tested to 250k miles these days before being released