I have tried searching the web for information upon the correct headstock oil for my Boxford STS 10-20 lathe. ………… Very confusing and contradictory. 
It seems lots of people have many different ideas and reasons from a fairly light weight oil (e.g. auto transmission oil) to a much heavier grade.
They seem to differ as much as recipes for making curry.! With with everyone convinced their choice is the best.
This has left me 'confuddlized'
What do you recommend.?
Regards, Nick