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2007 Impala Flex Fuel what type of Power steering fluid?

37K views 7 replies 5 participants last post by  1999 White C5 Coupe  
#1 ·
I have a 2007 Impala that I need to exchange the Power Steering fluid but what type as the manual and Haynes just say to use GM Power Steering Fluid ?
 
#5 ·
Yeah, you may be able to use transmission fluid for your power steering, but personally, I wouldn't. I would use the fluid that GM recommends.

I'm just not sure why you would purposely use transmission fluid in your power steering system when GM specifies power steering fluid... Just use what the manufacturer recommends. Now maybe if you were "stuck somewhere" and all that you had was transmission fluid, then maybe I'd use it, but otherwise, I just don't see why you would purposely use something other than the recommended fluid type.

Maybe you can use transmission fluid without issues - but why risk it?

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#6 ·
I agree with above 2 posts.

Use power steering fluid that is GM approved.
ATF "back in the day" but, not so sure that's such a good idea now.
I don't think it's a seal issue but more of whatever the shaft steel and such is made of.

IMO that is.