I have an 04 w 200,000 miles
Steering was sticky when driving. I replaced most of the fluid using the turkey baster method several times over. The steering is now functioning like new when warm, but a new problem developed. On a cold morning, lots of whine from the PS system.
I think my reservoir filter is clogged and the new fluid is more viscous than the thin, black worn out stuff I extracted when changing the fluid. I'm going to either clean the filter or just replace the reservoir entirely. Big time cold snap coming this weekend, so I should know the results soon.