My 1959 TF 38 flatbed has a shopbuilt two cylinder hoist. One of the cylinders is in the shop being rebuilt, Reinstallation will require refilling the pump reservoir. Does anyone know what kind of oil I should put in the pump/reservoir? Hydraulic oil, motor oil, or ??

I couldn't find a mfg name on the pump/tank. It is PTO driven and the pump is located inside the tank (reservoir).

Any help will be appreciated.


Oldbolter
1959 Apache 3800 dually flat bed/dump with 261
1956 3800 dually flat bed/dump with 235
1957 3600 flat bed, 350 engine, 700R4, PS, disc brakes, 14 bolt rear with 4.11 gears