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6.0L Power Steering Fluid

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What Power Steering Fluid are you guys running in your 6.0 Gassers? I was wanting to flush and run a good synthetic. See below on the compatibility responses from Amsoil and Redline.



"Unfortunately, we do not offer a power steering fluid for this vehicle.  Our Power Steering Fluid (PSF) will not satisfy the specification requirements that GM wants for this truck"


Thank you for contacting Red Line Oil, the PowerSteering fluid would be compatible with those fluids, though they are ATF based and our D4ATF would be the recommended replacement.


I read the Royal Purple is a good one and it says its compatible with all OEM fluids. I am not against the OEM just was wanting a higher quality fluid. Is GM # 19329450/ AC Delco# 10-5074 the current P/N? When I looked up the AC Delco # on their website, my year is not on the vehicle list. Very strange. 

Edited by Abominator
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