I am thinking about getting a diesel again ( I have had a 94 7.3ps and a 95 ps) but I don't know much about the 6.4L. Do they have as many issues as the 6.0l which is out of the question for sure. I have heard way to many horror stories about the 6.0's. Do the 6.4's have the urea injection or what ever and what does it cost to refill and how often, and can it be deleted? If it can be deleted does it shorten the life of the engine and what does it cost to delete and what about warrenty? Do the 6.4's have as many injector issues as the 6.0's? And last what are some of the issues that the 6.4's do have? I would love to find a 03 with a 7.3 with low low miles but I don't think thats gonna happen so the 6.4 is next on my list. I don't wanna hear about how much better a duramax or cummins is so don't bother. ( no offense intended to anyone) I just am trying to figure out what its gonna cost me to drive a diesel again with the long term repair and maint. bills. Thanks for your help in advance.