Researching the Kubota SUPER UDT2 blended by Valvoline and looking at customer testimonials, this seems to be the best of the best in tractor fluids? Or is it? I know several people who have switched even their commercial zero turn hydros to this stuff and say the hydro wine completely went away followed my much smoother operation. I have also read alot of horror stories of people who have tried to substitute in a different fluid for the UDT2 and they had some serious problems with clutches and even coatings coming off inside the drive train.....