go to diesel bombers website or any diesel website. They all have some type of issue, wether it be injectors, head gaskets, oil cooler, etc newer ones seem to be working out the magority of the issues. I have an 04 f350 6.0, the "worst" labeled of all the ford engines. It did have issues, then i researched the issues and took care of the problem before it took care of me. I also did a tune on it, not a crazy tune but wow did it make a difference. i was told diesel motors dont like short trips, and not to baby them. drive them like you stole it. who knows. I do know it has more power and gets better mileage then any gas truck doing the same work. First moon rocket motors were diesel. Noone changes plugs on gas engines anymore either. computers have these things running so good, you dont need to change plugs all the time. The one issue is sometimes it takes a little longer finding fuel for my diesel. Good luck,