Let's start a list of major diesel engine failures here.

Give us the year, model, mileage, and probable cause.

I've had 3 MB diesels and have had no engine failures.

Then again, I've never had any major engine failure except for a Saab that burnt a valve because the dealership mis-adjusted a lifter...a dreaded maintenance induced failure I used to talk about all the time.

240Joe

PS...my reasoning for this list is to show most failures have absolutely nothing to do with oil change interval...and most are related to overheats, or doing something really stupid...like never checking the oil, or leaving the oil cap off, etc.