I have coffee with a gent who's had 2 sets of injectors in his Chev and he got rid of it before it was out of warranty as he didn't want that expense.....
I've owned several fords which all had injector problems... . as well as wiring problems in the valve covers.....
I know currently own 4 of these trucks... 04, 04. 5, 05, 08 all of them have over 100K and the 04 is close to 300K... . mine are all stock. . we've not had a problem...
All we did when the trucks were new was install a 10 micron primary, and a 2 micron secondary filter on the frame rail. . We've done the same to a couple of CAT engines we own as well.....
We don't get fuel in stations but only commercial card locks where we can see a filter on the pump...