It looks like engine soot is going to be a lifelong problem for these motors. I'd like to see a technical thread that discusses the issue and helps an owner figure out whether his EGR needs to be cleaned and shows me how to do it myself. Every motor will need it by 60,000 miles if I remember the owner's manual correctly. Seems like plenty of folks will need it a lot more than that. If it wasn't too hard I'd try to deal with it myself. I don't entirely trust the local dealer. They seem to want to fix everthiing with a reflash (the clean hands approach to being a diesel tech).