Do they know what are they doing? PS fluid

[Kardell]

I have had a power steering rack and pump replaced in my Audi A4 B6. I have checked the fluid level and have noticed reddish colour!!!
OMG it supposed to be green! What these people have done, now this has to be all flushed otherwise PS rack seals are done.

[tHatOne guY]

Is it ATF?

I know most people religiously use the OEM fluid or CHF and nothing else, I personally have been using Redline for a little over a year in my B6 and about 2 and a half in my C5 and have had no issues so far. The Redline fluid even quieted my C5 pump where the OEM fluid could not.

[Willënskraft]

Best to ask them what they used.

[DJHoro]

Lucas power steering stop leak is red too.

[Kardell]

I will ask on Monday, this guy has an Audi himself so my assumption is that he should know what he is doing, but I can read everywhere that CHF 11S Pentosin green fluid is the one to use for Audi - mineral high performance good for low temperatures not synthetic fluids.

[audinutt]

Been using Mobil 1 atf in my d2 a8 since I replaced the rack 3 years ago. 90k miles no issues.

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[maurizio]

unless you specifically ask for it, i doubt any shop will put the "correct" fluid in it.

[jonan]

so i have ~150k miles on my rack...anytime i flush the system i put an ounce of autoRX in the system and drive for 1,000 miles before flushing with new fluid...no leaks or squeaks as of yet, knock on wood...

[Kardell]

Do you use "Automatic Transmission Fluid" - ATF for power steering system?

[jonan]

nah, i use motul

[Seerlah]

I run Amsoil PS fluid and flushed system with chf11s first, not that anybody's asking. You don't absolutely need to always go by the book, especially when there are better unapproved products out there on the market.