Air tool lubrication

[Edward Hamilton <hamilton@ptd.net>]

My recently purchased air tools recommend the use of Marvel Mystery oil
as the lubricant.  However, there is a special note concerning the 1/2"
impact wrench -- "The right side of the housing has an allen screw with
the word "oil" below it.  This is provided so that the user can oil the
front clutch mechanism periodically on new units.  Remove the screw and
pour one tablespoon of SAESO Oil into the opening...."
The question being -- What is SAESO Oil?

Best regards,
Ed Hamilton