Recently when I purchased my used M7 152 Deluxe tractor, I did and exhaustive amount of research on Kubota UDT and the Super UDT2 fluid.
Valvoline actually manufactures this fluid for Kubota based on their requirements/specifications. I was looking for a suitable substitute only because of the price seemed to be unreasonable at my local dealership.
My tractor has a German ZF 16 transmission which is used in many other platforms other than Kubota. I also researched the other models and their Hydraulic fluid requirements for this transmission.
I realize it may seem like I was in the weeds just because of hydraulic fluid, but truthfully this cost wasn't as much of my issue but finding the absolute best fluid I could that would provide the protection needed for my transmission.
I did purchase (13) 5-gallon jugs of Cam2's premium Hydraulic fluid, and my intent was to drain every drop of fluid from my tractor and do a complete replacement of all the fluid or a least as much as I could reasonably get out, and that includes all 4 filters and the oil in housings that had filter elements.
Well after all that and going through all the info I could find about recommended fluids for these super expensive transmissions I kept thinking about all the equipment I have on my ranch that I used my remotes on, I.E. (2615 Bush Hog, Hay Baler, Kuhn trailed hay cutter, Kewanee folding disc, "new" Kubota Hay Rake RA212CR and my older M&W Hay rake), I'm sure I am forgetting a few more, but the point is to be completely safe all of this equipment would have to have all the hydraulic fluid removed. If not as soon as I attached to any of them, I would contaminate my Tractors Hydraulic Reservoir.
With all that rambling, I think I will be changing my Hydraulic fluid and replacing it with Kubota's Super UDT2 and just hope the hydraulic filters on the tractor do what they are supposed to do.
When the Engineers designed this equipment, they knew that at some point there will be Hydraulic fluid that intermingles from ancillary equipment, it cannot be helped. And draining all my equipment hydraulic fluid including my other tractor (NH TD5050) is crazy.
Kind of a crazy first post, but yesterday, I had a buddy that is the Head Service Tech from my local Kubota Dealer come to the Ranch. We hooked his KOBD up to the Tractor and uploaded the latest software to all the various computers and re-calibrated every component on this tractor, I did purchase it used, and it didn't appear to have been updated since it left the Factory in France.
There is definitely a noticeable difference in operation, even though it was smooth before. I wish we as end users could easily purchase these connectors and software, but who knows maybe someday.
I will use what Kubota recommends, if nothing else but to try and protect my investment, it has to be fairly decent, since the rep I contacted at Lucas Oil, told me Kubota's Super UDT2 is one of the only Hydraulic Fluids they cannot recommend a Lucas product as a replacement.
I told you I really got into the weeds.
At the end of the day, you can pay a little more now or a heck of a lot more later.
Hope you all had a wonderful Thanksgiving, and an even better Christmas.
V/r,
C