Hey Just stopped by Bobcat today and had a talk about hyd oil and that I needed something I could run in all my equipment. dozer, skidder, loader & skidsteers. Well they held strong to the manual Bobcat Oil or motor oil only if needed to top off. Bobcat wouldn't pay for a study to find what other's would work???? After they found out my Bobcat's were out of warranty and some more probing. They told me that they had gotten a shippment in and the supplier had forgot to put it in the Bobcat jug's, it was Mobil ISO 46 and they kept it and used it. With that we now have some specs to go by. If you believe the story. dennis