I have had my valves adjusted once by the local Cummins shop.

That was about 25,000 miles ago they recommend every 24,000 for valves. Seems a little soon to me, does anyone follow the 24,000 mile interval?

I have about 79,000 miles on my 95.

 

i'am on the 50,000 mile plan...my cummins shop recommended this. ..

 

The first adjustment is the most important, after that they rarely change.
The schedule should be more like 25k then every 100k thereafter.
When I did adjustments on both my rigs at 100k and 200k it was a waste of time, they needed nothing. Best to check though.