can i use this power steering fluid?

[02 A6 2.7T]

I bought a bottle of prestone power steering fluid since i was checking my fluids and mine could use a topping off. It doesnt say too much just that it is formulated to work in modern cars and works in gm, ford, chrysler, most foreign cars. Is there a certain type of power steering fluid we are supposed to use in these magical cars? I dont want the elf under my hood punishing me when i leave for canada wednesday. Im not going to put it in until i get some input.

Use CHF-11S Pentosin synthetic fluid. This was used in all Audi cars from 1990 and up. You can get it at most NAPA stores if you don't want to get taken at the dealer...