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Power Steering Fluid, owner's manual calls for Dexron II or III, what else is acceptable?

Car: 2007 Toyota Corolla.
<br/> The power steering fluid is a little low. I'm going to do more than just fill it up--I'm going to use a turkey baster and suck up what's in the reservoir and then replace nearly the entire content of the reservoir with a fresh power steering fluid. I intend now to do this procedure every oil change as this will keep the fluid replenished to some extent. I also believe that this only replaces about 1/5 of the power steering fluid in the system. Well, 1/5 every oil change seems all right since the owner's manual doesn't actually call for a replacement interval anyway.
<br/> Here's the question: Dexron II is impossible to find, III is rare. What else is acceptable?
<br/> Is Toyota Type-IV ATF fluid also acceptable? It's what I use in the automatic transmission. Is Dexron VI good too?
<br/> I don't want to mess up and use the wrong fluid.


  • edited December 2010
    Use Dexron III, it is the most common ATF on the market and can be purchased everywhere. Nothing else is acceptable. Many bottles will say Dexron/Mercon compatible on them, that's the one.
  • edited December 2010
    Doing what you propose certainly won't hurt anything, but it seems excessive to do it every oil change, even if it's only 1/5 of the total system volume. Generally, keeping the power steering system topped up is entirely adequate. The Toyota dealer should be able to supply the Dexron-compatible fluid that they use in their service department. If you'd rather buy it yourself, any premium brand that is Dexron compatible will be fine.

    For example:
  • edited December 2010
    Thank you both, I will follow your recommendation.
  • edited December 2010
    I've been draining and refilling the PS reservoir on my 2006 Matrix once a year (every other oil change) for the past 3 years.
    I'm using Dexron VI as I couldn't find Dexron III.
    The first time I did it it was pretty dark with chunks of debris.
    Each time I do it the fluid looks a little better.
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