power streering and synthetic fluids

I was wondering if anyone knew of any good synthetic power steering fluids. A few years back, I had 1993 Ford Ranger and a round 200,000
kilometers, the power steering became inefficient and very noisy. One day I was in Walmart and noticed the store brand synthetic power steering fluid that was about $1.50 or so. I bought it and with a turkey baster removed some fluid (there is no drain on a ford power steering pump) and then topped it up with the synthetic from Walmart. In a few minutes after starting the engine, the noise went away and power steering work almost like new again. I had to do the same thing about 50,000 kilometers later and had the same results. The downside is that Walmart doesn't sell a synthetic power steering fluid anymore. The only other brand that I came by was Valvoline's but that cost around $10 which I could pay knowing that it would eliminate the wine and moan from the power steering pump in my 1998 Ford Windstar. Anyone have any suggests on a good synthetic power steering fluid or even a transmission fluid that I could use?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.