Cm 870 head being replaced

[Craag]

(04-02-2020 )Unilevers Wrote:  you will be in this exact same spot in under 100000 miles. remember these words.

That's pretty scary. How can they be so far off when they are supposedly quoting Cummins to me stating .09 to .010 is the high range of liner depth? Has Cummins not updated their service procedures on these engines in over 15 years? Smh it's like even the truck manufacturer is set against the owner op having success.

What is with these heads also? Another post right after mine cm 870 head out after 40k. I would assume my failure at least was part related as it was fuel in coolant. The stealership made it sound like they change these all the time too