Hydraulic fluid for power pack

[klassenl]

I bought a Greenlee punch driver (767) and it's critically low in fluid. The instructions call for
Mobil DTE 10 Excel 32 or the Greenlee brand stuff. I can't source exactly that in my small town. So what alternative should I get. What should I be looking for.

 

[john.k]

A thin hydraulic oil will be OK ......oil sold as hydraulic jack oil for Porta Powers ............ .I dont use motor oils ,because they often cause seals to swell .