SAE 30 in an electric motor, really?
I have a close friend who owns a vac repair/sales shop, he said to use 3 in 1 electric motor oil (in the blue and white bottle)..I believe you know him as well, Dave. SAE 30 will only gum up the bearing, and eventually cause it to go fail. I'd take his advice on this topic as he has been servicing and overhauling vintage vacuums for the majority of his life. SAE 30 is great for a lawn mower, but not so much for an electric cleaner. I cannot imagine why one would put engine oil into an electric motor.
