Just purchased this truck with an isx...it's been demandated

[trahrens]

Just got it home awhile back and have been working on it on and off and I have found so much knowledge about this engine here. This forum is awesome and thanks for letting me in. My concern is that this truck has been demandated and I haven't really ran the truck yet as there are some other things that need to be done to it. The truck is a 2009 Kenworth t800, it's only got like 244000 miles on it total. Egr and dpf are all still intact, I just want to know what I need to do to have a dependable, long lasting engine. After reading on here about crappy software on demandated trucks, it has me concerned. Thanks everyone!