I should point something out here.
The main deal with the oil is to prevent the bearing from failing. I have heard rumours that some manufacturers use the oil to produce drag on their drive system so that their speed controls will work properly. I don't know if the Nottingham does that BTW, but such use of oil is a mistake. It should be obvious why- misapplication will cause the speed control to not function ideally, and there is no way to know once the unit ships from the factory that its working right!
So, from an engineering point of view, that idea is flawed and something that no-one should do on account of poor reliability and repeatability. Thus, a proper oil that protects the bearing is what is needed. The Dextron I mentioned does this beautifully- I have used it in professional tape deck bearings and all sorts of turntables over the last 35 years. I have yet to run into a situation where it did not work splendidly. You can pay $100/bottle if you want, but I would not be surprised to find that the oil thus obtained is very similar.
