Decided to go with the Dex/Merc, after looking at alternatives via an internet search, and having a few folks from this list respond, both on list and privately concerning it.  Thanks to all who responded.

mcneely

---- Dave Mcneely <mcneely4@COX.NET> wrote:
> ---- Eric Ley <eric_ley@hotmail.com> wrote:
> > Any ATF= automatic transmission fluid will work in the power steering system
> > all the new models are backward compatible (so they say).
>
> Even Type F, or ones that specifically say not to use in transmissions requiring XXX?  Of course, I am not using it in a transmission atall, but there must be differences in formulation, or there would not be differing labels and specifications.  I was cautioned away from the product labeled Dexron VI, labeled as a synthetic, by a clerk at an Autozone, but I don't know that that means anything.
>
> Really, the only product I found that claimed back compatibility to include a plain Dexron was the Valvoline stuff I mentioned before.
>
> I suppose we are dealing with a system that does not become as hot as does a transmission, so less critical in some ways.  But I hate to induce leaks in places they don't already exist.
>
> mcneely

--
David McNeely