Mcculloch Silver Eagle 219848-01 A McCulloch Silver Eagle SE250 Electric Chain Saw. What Sort Of Oil Should I Be Using? Bar Oil Or Motor Oil?

A McCulloch Silver Eagle SE250 electric chain saw. What sort of oil should I be using? Bar oil or motor oil? - mcculloch silver eagle 219848-01

I received this from my father, but no instructions, and McCulloch no longer exists.