Well, it's kind of like this question: Do you take a bath? (or shower)? If the answer is
'Yes' then you'll understand the need to flush your powersteering. Simply put, it gets
dirty. If your answer is 'No' - that's creepy:) Powersteering fluid, much like oil and others
contains additives. In addition, powersteering is one of the few systems in your car that
does NOT have a filter on it. So, over the course of the vehicles life, that fluid, which
lubricates the powersteering system, gets dirty and is no longer keeping your system lubricated. As a result, metal parts will rub together and break.
Benefits of a Power Steering Fluid Flush (old fluid removed, system is cleaned, and new power steering fluid is added)
When Should I Flush My Powersteering Fluid?
Ok, so I'm going to flush my powersteering fluid. How do I know when to do that? Many car manufacturers do not provide a service interval for powersteering flushes. A good rule of thumb is every 30,000 miles or every two years. These services are pretty cheap (from $59 to $199ish) and so, it's an inexpensive form of insurance. With that said, it's your car. Flush it whenever you think is right or when your trusted friends at Cutshaw recommend it :-) But don't wait too long. Repairing
your powersteering system can cost $500 (and up!).