Mon Jul 08, 2013 3:56 pm by Admin

For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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Fluid for Hydroboost

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Fluid for Hydroboost

Post  phlip on Mon Sep 22, 2014 4:56 pm

I'll be using the Turn one pump, Ford Hydroboost, and of course the Porsche rack for my conversion.
According to Alldata the booster and rack are supposed to use ATF. Alldata also says the stock GM pump
is supposed to use GM power steering fluid.
What kind of fluid are people using and what set-up are they using it with.
Thanks in advance, this is a great forum. No BS, just good useable info and interesting tales of other sick people and thier adventures of creating a car that for all intents and purposes you can't just go out
and buy. It's like a frikin support group.

Posts : 61
Join date : 2012-08-11
Location : Dallas

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Re: Fluid for Hydroboost

Post  Lemming on Tue Sep 23, 2014 8:36 am

Well, I'm new to HB. I used Redline PS fluid

F-body pump and mustang HB, no PS rack.

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Join date : 2011-05-30
Location : B'ham

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Re: Fluid for Hydroboost

Post  948 on Tue Sep 23, 2014 12:49 pm

+1 for Redline PS fluid.
I am using it in both my 948 and 2500 Suburban Hydroboost issues so far.

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Join date : 2009-06-09
Age : 102
Location : East PA

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Re: Fluid for Hydroboost

Post  Admin on Tue Sep 23, 2014 8:18 pm

Turn one recommends the ATF I believe. I have used both without any problems, If you use regular power steering fluid and the pump makes noise try ATF, it seems to run quieter.


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Join date : 2009-06-08
Age : 59
Location : Arlington,Texas

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Re: Fluid for Hydroboost

Post  RS Technic on Wed Oct 01, 2014 2:14 pm

I'm using Royal Purple power steering fluid with no issues.
RS Technic

Posts : 73
Join date : 2013-08-12
Age : 48
Location : Bismarck, ND

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Re: Fluid for Hydroboost

Post  phlip on Wed Oct 01, 2014 4:10 pm

Thanks for replys. I think I'm going to use Amsoil ATF and see how it works,
since I have plenty of that at the shop already. And it's almost free to me.

Posts : 61
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Re: Fluid for Hydroboost

Post  Techno Duck on Tue Oct 07, 2014 5:44 pm

I asked Turn1 if it was safe to use ATF, they said any name brand synthetic ATF is fine. I was using PS fluid previously with no issues; the rack blew out on my track day over the weekend.. when i replace the rack ill refill with a synthetic ATF.

I dont think the PS fluid was to blame, the rack was original with 130k miles so it was probably bound to happen eventually.

Techno Duck

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Join date : 2010-12-01
Location : San Diego, CA

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Re: Fluid for Hydroboost

Post  fantic on Wed Mar 15, 2017 8:53 am

Hate to reopen a 3 year old thread but it looks like its half and half of power steering fluid and atf. I just bought the Mustang hydroboost from TPC. What fluid is everyone using?


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