I read some blog where a guy posted that he had gone over a million miles in his Dodge diesel pickup. There must be a few of those around, with their Cummins engines. The 7.3 Fords seem to have the same kind of reputation.
I loved the 7.3 and purposely passed on another diesel ( I do not consider any other make ) until the kinks are worked out of the 6.0. I am liking the new Fords however. I rode in a new Super Duty last weekend and it was sweat.