Last week it was so cold here that the return line off of my power steering pump blew off and I lost all my p.s. fluid. (I guess I did not wait long enough to warm up).
Anyways, when I went to the dealer to get a new hose, I asked the mechanic , who happened to be at the parts counter as well, what I should use on my '88 260E for power steering fluid. His response was that I should use a power steering fluid that contains no minerals since they will ruin the seals. He mentioned that PS fluid for american cars use minerals in them and that I should use whatever VW or any other European car uses.

Zorin