Originally Posted by J Miller

Christy,

Those motors got their design start in the 1920s. Those are grease tubes and that is what needs to be put in them.
Obsolete or not, that's the way of it. We've hashed this motor lube thing over many times here and the thing is, Singer motors need and use grease. Oil, either in the tubes or on the ends of the shafts just won't do the job.

Joe