I'll have to look at the specs of the oil tonight. I just went to equipment depot and asked for hydraulic fluid and that's what they gave me $63 and change for 2.5 gallon jug.

I don't think I have too much in there. I have a good leak I was able to trace down this weekend. Its where the power steering lines come down from the pump and head across that cross member I guess going to the sump tank. There is a line with a tee and its leaking pretty good. It looks like the pressure line, I assume the line with the worm clamps is the return line. I don't know if its loose or the line itself is leaking. Tight down in there with the steering cylinder

I could not figure it out till I got under it and scraped off 30 years of dirt, gunk and crud (filled a 5 gallon bucket) Now I can see whats going on.