Hello Forum looking for feedback on the 2010 485 Cummins, Truck in question is a 2010 peterbilt. The truck has 800,000km what should i be looking for when it comes to maintenance? What should have been done to the truck over the years (engine rebulid?)

Thanks for all the feedback

This is a lengthy article, but if you're serious about owning an ISX you really need to know this stuff.
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I'm almost bankrupt having shelled out tens of thousands of dollars having my ISX repaired before learning to do this myself.

Thank you