I really don't understand this info. Is this suppose to be good or what?6000hrs on a cummins motor before midlife (injector change, fuel pump) 12000hrs full rebuild. Off highway use. New cat engines tier 4 3000hrs injector change, 6000 hrs injector change and pump, 9000 injector change, 12000 hrs full rebuild. Shut off a tier 4 cat engine under load at full revs too many times you will burn or melt the tips off the injectors.. Being earthmoving gear they spend 80% at 100% load. 250k for a engine rebuild. Nobody that I know of in this industry adds any thing to their diesel. It is (xl) (extremely low) sulfur fuel too.
12,000 hrs for a full rebuild? Are you saying this is good or bad?
I'm not trying to argue about it I just want to understand what you posted.