CK20hst 50Hr Hydraulic OIl Change ?

[DK35vince]

Right now it looks like I go with the NAPA 85-405 since that what the new local dealer would have used anyway.

The Napa premium heavy duty tractor hydraulic/transmission oil 85-405 is what I used in my DK 35 gear model on the last oil change.
Worked fine.
I'm currently running Rotella tractor hydraulic/transmission oil