What oil should I use to replace the hydraulic oil in LJ602E? Suitable replacement is #32 Graded Oil. Related articles What type of oil is required to run POWER JOE? How can I wire the generator to power my entire house? How do I start up my SJG4100LP Portable Propane Generator? How do I properly operate my LJ602E Log Splitter? How do I clean debris/residue from inside the unit?