"I doubt it. They more than likely use the cheapest oil they can buy that meets specs. That Kubota branded oil is there to sell to you at a premium price. "
Nah, I use Mobil 1. Oh boy, an oil thread and darn but I got to go out of town just when it is getting good and miss all the fun, drats. So, let's see, Kubota uses the cheapest oil they can find that meets spec and JD has a special "break-in" wonder oil but Kubota only uses cheap oil--hmmm--guess it was a good thing I changed that cheap oil out early and put in the Mobil 1. Being a born skeptic, I suspect that those barrels of break-in oil complete with part numbers are that cheap oil that barely meets specs.
Oil is such a fun topic, snake oil salesman everywhere and even two headed guys and ladys with beards and here I go going out of town! Shucks. Hey, y'all thrash this break-it oil thread out for me and give me a report when I get back. Somewhere out there is a guy that ran break-in oil in his tractor for the first 5,000 hours without a change and his tractor is just getting, ah, broke-in, I can feel it coming. Everyone, be safe and have a fine week. J, born to be a skeptic