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Re: steering whine and power steering fluid Posted by REM in Seattle [Email] (#4) [Profile/Gallery] (more from REM in Seattle) on Thu, 28 Feb 2008 20:40:30 In Reply to: steering whine, Craig, Wed, 27 Feb 2008 18:59:27 Members do not see ads below this line. - Help Keep This Site Online - Signup |
From 1994 to 1996 Saab factory recommended power steering fluid was GM Power Steering Fluid (GM Part No. 1050017 or equivalent conforming to GM spec. 9985010). PS fluid meeting the GM standard is available under several brand names at most auto parts stores for a under $5 for a quart. It is inexpensive and works well for 3-5 years and then may need to be changed.
From 1997-on Saab used Pentosin CHF-11S, is a synthetic hydraulic fluid with superior temperature handling ability (-40F to 266F) and anti-foam properties compared to the standard GM power steering fluid. Several other European car makers including Audi, BMW, Mercedes, and Porsche also use Pentosin CHF-11S. Pentosin CHF-11S is very stable and should not need to be replaced for the life of the power steering pump. The downside is that Pentosin CHF-11S is quite expensive at $25 per liter. According to Pentosin, CHF-11S is not compatible with any other hydraulic fluid.
When I changed the power steering fluid at 60,000-miles, I used a turkey baster and sucked the power steering fluid out of the power steering reservoir every night when I got home and refilled with new Pentosin CHF-11S. I used 1-1/2 liters of fluid, saving the remaining 1/2 liter for top-ups.
Rob Mustard (REM in Seattle)
2005 Saab 9-3 Aero Convertible; 5-speed; 17,000 miles
1998 Saab 900SET; 5-door; Automatic; 97,000 miles
1984 Saab 900T; 3-door; 5-speed; 242,000 miles (RIP)
_______________________________________ REM in Seattle Current: 2013 Volvo XC60 R-Design, Rebel Blue, 3.0L 6-cyl turbo, Automatic 2024 MINI Cooper S Convertible, 2.0L 4-cyl turbo, 6-speed manual Former: 2005 Saab 9-3 Aero Convertible, Steel Gray metallic, 2.0L 4-cyl turbo, 5-speed 1998 Saab 900SET 5-door, Silver, 2.0L 4-cyl turbo, Automatic 1991 Alfa Romeo Spider convertible, Alfa Red, 2.0L 4-cyl, 5-speed 1984 Saab 900T 3-door, Red, 2.0L 4-cyl turbo, 5-speed
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