Re: Power steering rack, Head Gasket; 100,000 mile check-in! - Saab 900 Bulletin Board - Saabnet.com
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For whatever it's worth, their additive was very helpful on my P30 motorhome. That idiot machine has hydroboost brakes as well as a hydraulic UNparking brake (default = ON, hydraulic pressure takes it off) that all runs off the same pickup truck sized power steering pump and has NO cooler. It *murders* power steering fluid through heavy braking, especially in combination with steering - like one might do powering through the Sierra Nevadas. The RP additive was the key ingredient for consistent performance.
I eventually replaced the pump and installed an automatic transmission cooler in the power steering circuit and that has kept it happy using only high-quality (randomly half Redline & half Royal Purple) power steering fluid. But, without the cooler regular power steering fluid was not heat-tolerant enough without the RP additive.
posted by 12.195.130...
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- Power steering rack, Head Gasket; 100,000 mile check-in!, Frak , Wed, 6 Dec 2017 12:10:32
- Re: Power steering rack, Head Gasket; 100,000 mile check-in!, Justin VanAbrahams , Wed, 6 Dec 2017 14:14:56
- Re: Power steering rack, Head Gasket; 100,000 mile check-in!, Landjet , Wed, 6 Dec 2017 15:24:05
- Re: Replacement shock recommendation?, Frak , Sat, 9 Dec 2017 19:09:26
- RP only shows PS fluid, no PS additive. That it? N/M, Saabina , Thu, 7 Dec 2017 16:42:54
- Re: Power steering rack, Head Gasket; 100,000 mile check-in!, Saabina , Wed, 6 Dec 2017 15:34:16
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