I actually have a diesel in one of my Yachts which has run 13,000 hrs with ONLY oil & filter changes at max continuous revs---not even injectors or pump
I have a friend with yachts (much better than having one yourself) and in his latest and greatest he went for the latest and greatest in engine technology. Two MAN common rail turbo diesels, awesome power. Usually one drives yachts in the Med and if people sell you fuel that is half horse piss half some kind of mineral oil, you get into trouble with such an engine. So another case where modern technology bites the adopter because of bad circumstances. Like with the aero diesels and their ECUs...