Generic equivalent of G002000 hydraulic fluid?

[[k]arl]

Does anyone know a generic substitute for Audi's G002000 hydraulic fluid?

I desperately need to top up the power steering reservoir in my old A4 mile-muncher (the level has dropped below minimum), but there isn't an Audi dealer open near me at the moment, so a no-name similar product will have to do.

Question is, what exactly do I need? The Haynes manual doesn't give anything other than the Audi part number, and the compatibility list on the label of Halfrauds finest in our local emporium doesn't mention Audi at all.

Thanks in advance!

[k]