I got a 1947 South Bend Lathe from my grand uncle and it states that the gear cases use SAE 10 and SAE 20 machine oil. I am having a hard time finding these oils on the internet. Have they been graded differently and what are the new grades and does anyone know where I can get a quart of each? I would like to replace the oils in the lathe for I suspest they still have the original oil in the gear cases.
Thank you, Don
Thank you, Don