XRAY - Model racing cars

Hy,

does anyone know whether Much More only a 0 apending by the fluid hardness?
I read in a Forum that MM in Europe made this like 45(wt) is by MM 450.
I think everytime all manufacturers calculate from cst to wt or wt to wst.
Is this correct?

And how is this by MR33 Shock oil? Is this the same like MuchMore or is this Oil converted from wt to cps?

Because I tried much Oil manufacturers and the oils are different.
I take a 42,5 wt Oil and a 500 oil and the Oils are different.
When i calculate a 42,5 wt to cps it is a ~ 520 cps

And when I look the Setup Sheets from Alexander Hagberg and I tried this Setup for example with a 500 oil, my springs are always to soft. When i take a 50 wt oil it is ok and the Setup works!
Now I think that, because the Oils are different.

Has anybody a answer for me?

Regards Christian

They do vary, but thery shouldn't.
Cps is a standard, wt is not, so in theory the Much More and the Xray oils should be the same, or at least very similar.

Just use XRAY oils as specified by the set-up sheets and you will be fine. Yes, the Muchmore oils are very similar in weight to XRAY ones.

Thx to Skiddins and Alex for your answers.

Regards Christian