P/S Fluid


#1

Does power steering fluid ever actually need to be changed? Yes I know, the owner’s manual maintenance schedule does not have it listed.



It is a hydraulic fluid just like transmission fluid right? So isn’t it just as susceptible to breakdown / contamination?



Just curious.



jmw


#2

Exactly!

Tester


#3

It has less stress imposed on it than transmission fluid, therefore lasts longer.

Yes, I would change it every 60,000-70,000- miles or so or when any work is done on my steering system. It’s important to check the level regularly, since many systems develop small leaks that may go unnoticed.


#4

I don’t think it gets as hot as fluid in the transmission. Note that at least some auto manufacturers specify the same fluid as used in the transmissions


#5

Every 100,000 miles, maybe, but it’s under far less stress/heat than the transmission fluid.