VPI bearing oil/grease?

Beware teflon additives and oils. A fully qualified engineer ( proper engineer, Imperial College London ) advised me that the teflon additives can attach to the metal surfaces and that metal particles can embed themselves in the teflon, resulting in increased bearing wear.
My experience using teflon oil in a TT in the 80's was, after checking the bearing after 6 months, the oil was the dirtiest I had ever seen. Never used teflon oil again.

In defense of Slick 50, tests done on a Chevy 6 cylinder engine by the University of Utah Engineering Experiment Station found that after treatment with the PTFE additive the test engine's friction was reduced by 13.1 percent, the output horsepower increased from 5.3 percent to 8.1 percent, and fuel economy improved as well. Unfortunately, the same tests concluded that "There was a pressure drop across the oil filter resulting from possible clogging of small passageways." Oil analysis showed that iron contamination doubled after the treatment, indicating that engine wear increased

Frogman/Slaw,
If you can, try and get some Motul V300 Power Racing, either 0W30 or 5W40.
It is simply the best synthetic oil on the planet, a double ester synthetic, using extract from Copra. It is highly unctuous, which means a film will adhere to non moving parts and very slippery. Mobil 1 is like sandpaper in comparison. Most of the race cars with Mobil 1 stickers on them are not usually using it. I have tried various, molybdenum sulphates, laboratory grade oils, etc on TT's ranging from Linn/Oracle/Roksan/Townsend and many others. On the Roksan which has a very fine bearing, the 0W30 worked well. On my Final Audio ( 22kg platter/inverted bearing ) I use the 5W40. Unless the bearing is low tolerance for conventional non inverted bearings the 0W30 is fine.
In my experience some of the teflon based products and lower grade oils increase wear markedly.

Brf,
The Final Audio uses oil in an inverted bearing. The tolerances are very fine and the oil holds. Reseating the subplatter/platter takes about 6 hours when I change the oil. In the 25 plus years I have owned the Final it has never run dry.
Most inverted bearings run grease as you say but there are some exceptions.

Slaw, thanks for the feedback on the Motul V300 oil. Pleased to see you are happy with the outcome. I have also used the Motul V300 to great effect in lubricating the TT motor. In the Final TT the motor is fairly large and has a spindle/thrustpad/oil pan/double bush arrangement. Changing to Motul in the TT motor gave a big improvement in lower noise floor and improved resolution as well.