BlacknTan
Platinum Member
I had this question myself when I moved to Mobil DELVAC 1, so I called Kubota on it and spoke to an engineer in Ohio. I don't remember all the technical jargon, but the short answer is that it's OK to use. To ease your mind, call Kubota and get the answer straight from the horse's mouth. In any case, I'm using DELVAC 1, which is, I'm sure, superior to the dino that Kubota contracts for.