Originally Posted by kwike92
bro, I've seen these come into the shop with 650k miles before, i mean over time things break here and there, but this thing was still on the original long block. heads where never taken off, i replaced the injectors and o rings and the high pressure oil pump.. and that was at 600k miles...
this is the best engine ford has ever put in the f series, the predecessor is junk, the 6.0...
Wow! I had no idea 600k was possible on a passenger engine. I know that Semi truck diesel engines go that far and further... but that is quite amazing.