Turntable oil bearing

This from Van den Hul's FAQ's. I have no idea where to get it from?

171 Q: Do I need to change the oil in the bearing of my turntable ?
A: Each bearing wears in a way. So a change of oil after a good cleaning of all mechanical parts involved is an option. In my own turntable I change the bearing oil every 2 years.
Lately I use an oil doped with ceramic (zirconium oxide) marbles (1 micron diameter each). This means that there are always very small marbles between the rotating and stationary metal parts. So no metal-to-metal contact anymore. And that is what we need after all.
(This oil works for all non air-cushioned metal-to-metal turntable bearings and if requested is available from us).

I thought I'd chime in for my very first post- the Logic Tempo manual says use only "their" oil, which smells and behaves very much like 80w-90 transaxle or tranny oil, I kid you not. Hope this helps.

I actually bought a 30ml bottle of vdH Zirconium TT spindle bearing oil as mentioned by dougwebb. It is insanely expensive -- now about $150 I think. It's great stuff though. I'm using it on my direct drive Goldmund Studietto, and there's absolutely no mechanical noise. Obviously, I've got more than I'll ever use, so if anyone wants to try some, I'm willing to sell a couple ml (2 cc) to a few people for, oh say $20, which should provide two full oil changes for most TT bearings!

I'm willing to express a different idea. I use Wet Platinum, a silicone-based ... ahem ... "personal lubricant." It is slippery as heck and has not become overly viscous in my turntable. Besides, you might find some other interesting applications for it.

OK, some beginner questions if you all don't mind. First, how do I get the old oil out? Second, how do I get the new oil in? Third, how much oil are we talking about? Finally, how do I know when I've put the right amount in? Your help is appreciated. (Oh, I have a Thorens TD-320, if that makes a difference.)