both of these references say it does not need to be oiled... just use it at least monthly
http://www.amazon.com/Juki-HZL-F600-...Z3E31BARL4/-/1
http://mommyforreals.blogspot.com/20...0q-sewing.html
oil did not come with my machine, so that would seem to indicate that it is not to be oiled.
i love this machine!!!