Never used anything but Chevron (after the initial change many moons ago). I like the cold weather flowability of it and as an added plus, it comes dyed orange of all things so it's easy to see on the dipstick. Problem is, it's not a cheap date, even costs more than SUDT at my dealer but SUDT is clear and hard to see on the dipsticks, especially for my old tired eyes.
I was buying it from my local jobber (in Toledo) until I found out that NAPA has it.
I only change my gearcase oil every 2 years anyway and that also applies to the front axle and I run 85-140 GL5 in that.
The THC exceeds the Kubota SUDT specs.