I have a habit of replacing all fluids after buying a used car. The same with my S60. The only issue I have is my power steering fluid. I don't know what kind of fluid was before, the only issue I had was a noise when fully turned right or left. So I emptied a reservoir and filled it with CHF 202 ( saw on youtube that this is the best PS fluid for S60, indeed on a can it says for Porsche and Volvo cars) The noise has gone, although I didn't notice lighter steering wheel but, now there is - kind of - squeaking noise in the middle of a turn - left and right. I will probably return to recommended CHF 11s.
Is there anybody with similar experience?