power steering fluid

[MB]

Hi guys,could anyone advise me what type of power steering fluid to use in my ls3 /patrol conversion.The pump is late model commodore,and the actator is the nissan standard one .After a long run the steering whines a lot when turning to park the car at slow speeds.Thanks to all.

Only a wacky theory but is there a possibility that the Commodore pump is underrated being that I imagine only designed for little car tyres at near half the street weight?
Only thinking that my big old heavy GU 6.5L Chev ute with Nissan PS pump struggled a bit on a last deep snow trip with 35x12.5” tyres. GQ’s struggle as well in those conditions as if I recall correctly they have less fluid too due to lack of PS coolers out front, just a dead hardline loop back in the system?


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