to lazy to read but recently went to Brad Penn. It is the most tenacious
oil i have ever used. It is impossible to wipe off, it's like glue. Just what you want if you don't drive your car often. The most important property of
oil selection is what the builder used in the bearing clearances. If you don't have that info you can do an iterative process. If you are a member of SCOF there is an excellent article. I was smart enough to follow but not smart enough to accurately repeat.