LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Power steering fluid

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Old 06-05-14, 12:53 PM
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aypues
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Default Power steering fluid

I went to a new dealer today for service and she said everything checked out except my power steering looked dark and needed to be changed for $160. Is this right? Does it even need to be changed if its dark? Thx
Old 06-05-14, 01:10 PM
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ancdmd
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Rip off. I you wanna change it just get Mobil 1 synthetic ATF and a turkey baster, suck out what's in the reservoir and replace with fresh fluid. Start the car and repeat a handful of times until the reservoir fluid stays bright red. Very easy to do.
Old 06-05-14, 01:12 PM
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writes123
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simple drain and fill. take a syringe with a short piece of tubing. and suck out all the ps fluid from the reservoir then add new ATF fluid. I used Mobil 1 ATF synthetic fluid. if it's real dirty, I do this procedure on a regular interval, say 3k, till the fluid stays like the fresh fluid.
Old 06-05-14, 01:13 PM
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writes123
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Originally Posted by ancdmd
Rip off. I you wanna change it just get Mobil 1 synthetic ATF and a turkey baster, suck out what's in the reservoir and replace with fresh fluid. Start the car and repeat a handful of times until the reservoir fluid stays bright red. Very easy to do.
beat me to it. you're a faster poster.
Old 06-05-14, 03:12 PM
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Jabberwock
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Like previous poster have said this is a super easy DIY - just be sure to use good quality ATF fluid per the manual. Suck out the old dark fluid from PS reservoir and refill, drive the LS around for a little, and repeat a couple of times until the fluid starts to show nice red color again. It is not necessary to totally flush the system in most cases so a few PS drain and fills maybe every other year will preserve the entire PS system.
Old 06-05-14, 04:12 PM
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jayclapp
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I also found this to be easy. I did find that the fluid was not as dark as it appeared when just looking at the reservoir from the outside. As the fluid level was dropped I noticed that the reservoir had taken a darkening on the inside surface, making to fluid look darker than it actually was.

I captured the first fluid removed in a clear plastic water bottle and labeled it as No. 1. By doing this each time you can just line the botles up in a row and see how much the fluid color has changed. Then you know when to stop the procedure and be satisfied with your results.
Old 06-16-14, 05:05 PM
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warminwisc
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What is the PS system capacity of fluid? Thanks
Old 06-16-14, 05:21 PM
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writes123
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Originally Posted by warminwisc
What is the PS system capacity of fluid? Thanks
the PS reservoir takes about 1/3 of 1 quart. the whole system = i'm not sure.
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