I have had my Featherweight for about 6 months and ran across a video on how to oil it.
It hadn't occurred to me. Why yes, I am an idiot.
I oiled the poor thing and I'm sure it hadn't been done in years. I'm surprised it ran as well as it did. Now, I just need to clean and lubricate the gears and motor.
My regular machines get new needles and cleaned/oiled regularly, especially my mid-arm...oiled every bobbin change. Rotary blades usually keep going until they start to skip.
Watson