Originally Posted by bobkyle2
i been thinking about changin my PS fluid ... might use that lucas fluid
I really don't think Lucas would be any better then the Valvoline. Royal Purple PSF might be though.
The absolute best thing you can do is add an filter to your power steering system. There are kits to do this but the easiest way is to use a Remote Mount, Oil Filter. The one below is $42.95 from Summit Racing. You hook this into the low pressure side and all of the return fluid passes throught it. You have a choice of several sizes of filters and typically you change filters every couple of years. It helps keep the oil cooler but the most important thing is it filters any particulates out of the fluid which adds tremendous life to your pump and steering gear. If you do any off roading this addition will pay dividends.
If you want to get fancy you can mount a pressure switch in the top port and tie it into a light on your dash which will light up to let you know when to change the filter.