Both! The gas engine would take oil then the log splitter that runs the hydraulics would take a specific hydraulic fluid. Its best to go by what the manufacture says
my speeco 20 ton model uses Wix 51553 filter.
To add hydraulic fluid to a Task Force 5-ton electric splitter, locate the hydraulic fluid reservoir, which is usually near the pump on the machine. Unscrew the cap and pour the hydraulic fluid into the reservoir slowly to avoid spills. Ensure you are using the correct type and amount of hydraulic fluid as recommended in the machine's manual.
Hydraulic fluid and hydraulic oil are one in the same.
fluid and hydraulic oil the same thing
Hydraulic oil and hydraulic fluid are different. Hydraulic fluid is used in small systems such as car brakes. Hydraulic oil is used in large systems such as loaders.
oil will not evaporate as quickly as hydraulic fluid even though hydraulic fluid does not evaporate easily therefore you will not have to change the oil as often
Hydraulic fluid should be poured in the oil tank.
Manufacturer introduces hydraulic system hydraulic oil.
No. Water is insoluble in hydraulic oil.
No
Hydraulic oil.
Hydraulic fluid is hydraulic oil.... as for the type you use, depends on your system. I used to own two tractor-trailer end dumps, and I actually used ATF rather than hydraulic oil. Check with the OEM for your hydraulic system before you do this, though.