Straight answer would be use Kubota - S-UDT2.......Hello Orangemen,
Putting together parts for 50 service, and wondered if anyone has used Royal Purple's SynTractor III for the Tran-Hyd fluid change, been using many of the Royal Purple product line and believe them to be excellent.
The whine is a lot more noticeable on my latest Kubota then on previous ones i had. Sure hope the whine on my F2690 will diminish after my 50hr fluid changes. I too always have used fluids/filters from Kubota in the past but fail to see why it would reduce the whine, unless the factory fluid is something other then the S-UDT2 they recommend!?I know when i changed everything I did and the hydro whine went way down and it seem to work better in the cold weather as well,, might be me i do think its the right way to go