I did a partial fluid change today, I think the fluid is original to the car! The pump has been extra noisy when very cold out and the wife has said there was no power steering a few mornings (below freezing) until there was a little heat in everything...
Used my hand-held vacuum pump to suck the fluid out of the reservoir, sucked out about 2/3 of a quart of fliud
After refilling the reservoir and driving around the block
I really need to replace the hoses and flush the system, maybe in the spring! I'll probably do the suck and refill another time or two. I have a new large hose for the reservoir, the pressure line and a 9C1 return line.