6.0L Power Steering Fluid

[Abominator]

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.

 

Amsoil:

"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"

Redline:

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 February 6, 2021 by Abominator

[Gregory Krisa]

Still using dexron vi havent looked into the difference of other brands but this should be pretty close to the best fluid for our trucks

 

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[RangerU]

I used the RP in my previous truck, and it worked great. 

[newdude]

The quart bottle is 19329448, pint is the 19329450.  Both are current #s.  GM does not list Dexron 6 or any ATF as an approved fluid for the power steering in the HD.  

[Abominator]

I ended up using the OEM fluid. Bought a few quarts and got a good flush