Originally Posted by
J Miller
Use petroleum jelly as lube in the motor grease tubes. Or the old Singer motor lube in the tube if you have some.
I have some old Singer motor lube (1950 or so), and I was wondering if metal ions from the tube might have migrated into the lube and if it would matter if they did. Also, about vaseline, Singer said (in one of their old manuals) never to use it as motor lube. Is that just a sales thing? I wouldn't hesitate to use it for gears, but I don't know much about motors.