Last year I had a power steering leak for a long while and kept topping up with Prestone Honda compatible PS fluid because of how often I was doing it. I fixed the leak over summer but am sure most of the system is Prestone fluid considering how much I topped up. Anyway, it's gotten cold now and anytime the temperature drops below freezing the pump sounds terrible until warmed up. The Prestone must have deteriorated pretty quickly because it made no noise last winter. Stick to OEM Honda PS fluid, it's only $2 more.