Hydraulic oil for models - what's in it?

[JAMMER]

I first found those pumps and had a pressure gauge on one with ATF and it put out over 165 bl. I also ran some hydraulic oil I got from Harbor Freight and it slowed it down but it says in the paper work not to run them for long periods. They will fit in a fuel tank that were Brian has his. To tell you the truth I am not to impressed with it needs light oil and it all depends on how much you want to lift with it. Ed