PTO time causing problems

[1075tank]

I have seven trucks and I am beginning to have issues with the trucks that idle (pto) 55% to 65% of total engine time. My 2007+ trucks that do not have idle time have been very reliable after implementing egr maintenance, frequent air filter changes and shortened oil change intervals.

My problem is with our 2012 and 2013 pete 386s. These two trucks are idling 8 to 14 hr's a day running pto. I should start buying egr valves and dpf's in bulk for these trucks

We are not allowed to regen on site and some days have to move truck offsite daily to regen if we have that option. New dpf only last about 800 to 1300 hrs and getting very costly. Trucks are on the road four to five weeks at a time and our mechanic can not be everywhere all the time so dealers become our only and costly option.
I know I am maintainting our trucks well because I have four isx trucks running otr without problems.

I am looking for any solutions to improve reliability on the 2012 and 2013 or I may lose two very valuable operator/drivers because of reliability issues.


Thank you