GM power steering fluid

Manual calls for GM 89021184. Had a minor leak at a fitting, now fixed. Have to add about 4 or 6 ounces to bring it to the line. Any problem using a generic rather than the GM?
TIA
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use any approved p/s fluid. What year make and model is this?

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wrote:

Sorry, should have mentioned that. 2004 Chevy Express Van, 1500 series.
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Just dont use ATF, as used to be the 'standard'.
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for GM's, the last year ATF was the 'standard' for power steering was 1968. '69 on up use regular power steering fluid.
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Point was, some people still believe that ATF is an acceptable fluid. I guess the conception that power steering fluid is just another way to get a little more money from the buyer... It isn't.. Use ATF and you're looking for trouble.
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