Any of you guys with the old clutch machines, 500, 600 & 610 run Tractor trans/hydraulic oil in them? I got my 600 years ago and I got it with ATF in it and have been running it since then. Seems some Bobcat manuals say ATF others say 10w-30w. I know the ATF works so I kept using it. I am wondering if any of you use the trans/hydro oil instead of ATF. ATF works fine but cost significantly more than the trans/hydro. They seem to be very similar oils and I know lots of guys racing cars (strip and circle track) run it in their auto transmissions and like it better then ATF, it makes the clutches stick better. The trans/hydro made for wet clutches and powershift machines is what I was looking at, it's heavy duty anti foaming stuff they trust in half million dollar machines built for abuse and holds up well. Several manufacturers even use it to lube ring and pinions, that is hard use. I'm thinking as long as it's the stuff for wet clutches it should work fine but I always like to hear other opinions. Do any of you run the stuff?