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Power Steering Fluid or Ford Transmission Fluid in your PS Pump?


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The dipstick for my PS Steering pump (429 SCJ) indicates that I am to only use automatic transmission fluid (Type F) in it.

Does it really make a difference if one uses reputable brand of power steering fluid or transmission fluid in the pump? 

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Yes, it makes a difference, Type F has a lot of anti-foaming additives in it, and the pump was designed to work with that formulation.

 

 

“If you can't explain it simply, you don't understand it well enough.”

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On 9/11/2020 at 3:24 PM, ponypastor said:

The dipstick for my PS Steering pump (429 SCJ) indicates that I am to only use automatic transmission fluid (Type F) in it.

Does it really make a difference if one uses reputable brand of power steering fluid or transmission fluid in the pump? 

The difference is the price of a pump.   In a nut shell most Power Steering fluids are very close to the same formulation as most modern ATF's and they contain friction modifiers.   Type F fluid contains no friction modifiers, but does contain anti-wear, seal swell, and anti-foam additives as mentioned above.

 
 
 

 

 
 
 

Kilgon

 

 

"The only dumb question is the one not asked"

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