hydroscopic stereeing fluid

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Ed Fenwick

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Aloha folks is power steering fluid hydroscopic as is brake fluid. I have a bottle of steering fluid that is about two years old. Is it still good if the cap is tight?
Tks Ed
 

swshawaii

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Yes, power steering fluid is hydroscopic and absorbs water. Google Ed.
2002 owners manual shows Mercon ATF (Mercon V) as the recommended power steering fluid.
Pages 174 & 187
 

DILLARD000

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@Ed Fenwick
Yep, for PowerSteering fluid, just use the same MerconV that should be in your 5r55e Transmission.
No sense in buying an overpriced seperate bottle labeled "Power Steering Fluid".
Keep a tight lid on the bottles & moisture intrusion should not be an issue, unless you live in CentralAmerica.
Every 6mths, got a routine of HandPumping the PS reservoir empty then refill with fresh MerconV;
also HandPump 2qts of old fluid from the TrannyDipStickTube & refill with 2qts of fresh MerconV,
along with the usual semi-annual EngineOil+Filter change.
 

Ed Fenwick

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Yea, I went to google (even though I don't like them) , so I went to Yahoo. One post read that power steering is just like brake fluid, it is not hydroscopic! That is why I went to you guys.
 

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