Well when I tested the samples I had I found no difference between Losi and Associated oil.
It's all silicone oil, it's nothing special really.
The website in the link contradicts itself. At the top it says there is a difference between Losi and AE oils, at the bottom when they have done temperature tests the numbers look very similar to me
My tests were done in a temperature controlled cal lab (@25 degrees) used to calibrate viscometers with a £10k laboratory viscometer. I know what I measured, you guys think what you like.
G