I have an old cream separator that I acquired some years ago. I now have need of it. It desperately needs cleaning & it needs oil in it. I do not have a manual for it so need some help. What kind of oil would I put into it? It is a hand cranked Eskilstuna Separator made in Eskilstuna, Sweden & has the name Vega in the middle of a star which is in the middle of the label. Any help or suggestions would be appreciated.