2013 S5 Sport diff fluid

[Hy Octane]

Trying to find out how much and which type of fluid the sports diff uses.. All I can find is that it holds 1 quart.. is this correct?

[S4Phantom]

My Shopkey system at work says one quart as well, and only gives a part number of G 052 145 S2 for the fluid. This could definitely be correct, but someone else may be willing to chime in to confirm or say other wise