Basic sewing machine oil has a thickness around SAE 5 to 10, maybe some are closer to 15 (a bit thicker). The lightest I have seen have been clear like water and almost as thin. Basic sewing machine oil is very stable and I think I dare say up to 10 years on the shelf should be fine. Some oils are more amber colored even when new and fresh, so it's hard to tell by the color alone. Singer recommended a pure acid free oil of their own brand, the industrial oil you have is probably as good as any. The Featherweight isn't very fuzzy for the gears, but I personally prefer a ligher and smoother grease on gears than the white lithium greases. Some recommend Triflow these days, both oil and grease, it has teflon added. The motor has grease wicks, the expert recommendation is vaseline or one of the special greases like the Featherweight shop have. Don't use white lithium grease for the motor bearings. I assume Lubriplate is a lithium grease?
Last edited by Mickey2; 01-13-2019 at 03:45 PM.