Fluids and LubricantsMotor oil, transmission oil, radiator fluid, power steering fluid, blinker fluid... wait, there is no blinker fluid. Technical discussion and analysis of the different lubricants we use in our cars.
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It's a simpler approach and is better than trying to pull power steering fluid lines and flushing in a similar way to a transmission flush because power steering lines operate at a MUCH higher pressure than the transmission fluid return line. You're likely to hurt yourself if you try flushing the power steering fluid in this manner.
A 30 to 60k interval is probably sufficient. A synthetic ATF which is Dexron II or Dexron III compatible (such as Mobil 1 ATF or Amsoil ATF) should be used for longer usable life.
I had always thought that ATF is what you put in the power steering resevoir, but today at Wal-Mart I saw "Power Steering Fluid" .. how is this different from using ATF?
I've done this several times. Fluid looks nice and red, but still smells burnt. Should it be flushed instead? kinda like flushing atf in transmission?
Problem with that is power steering fluid operates at a very high pressure, making DIY flushing a potentially dangerous operation......not saying it can't be done, but it isn't like ATF, which runs at a reasonable pressure.
It's a simpler approach and is better than trying to pull power steering fluid lines and flushing in a similar way to a transmission flush because power steering lines operate at a MUCH higher pressure than the transmission fluid return line. You're likely to hurt yourself if you try flushing the power steering fluid in this manner.
A 30 to 60k interval is probably sufficient. A synthetic ATF which is Dexron II or Dexron III compatible (such as Mobil 1 ATF or Amsoil ATF) should be used for longer usable life.
If you add the correct fluid, it should be fully compatible and it will cause no harm mixing old and new. I recommend you remove/replace the fluid a few times in the course of a couple days to increase the concentration of new fluid in the system. Change the fluid, drive the car around for a bit, and repeat the process, etc, etc.
Can I use Synthetic Valvoline? I hav eno idea the book says PSFII, I looked at the STP, Valvoline and none said PSFII. Can someone give me a brand name?
would someone post brand names here? or a list for a 97 maxima?
i was thinking of MOBIL 1 ATF, but i read that someone had to topoff as it went below the COLD MIN???
would someone post brand names here? or a list for a 97 maxima?
i was thinking of MOBIL 1 ATF, but i read that someone had to topoff as it went below the COLD MIN???
I've used AMSOIL ATF (in power steering applications requiring D-III) for years in a number of vehicles and it's worked great. The PS units appear to run cooler and the fluid seems to hold up well.
Yes, you won't be disappointed. I just sucked out my old power steering fluid and refilled with the Mobil 1 ATF last week and everything seems to be running fine.
creeps i went down today.. and couldn't find mobil 1 ATF, though CHOKE valv, and other kind brands.. are valvoline brands good? i guess aslong dexron 3.. ill ck another shop if not ill just pick the valvoline brand..
i also saw a seperate section of PS fluid. like pyroil and what not.
Valvoline should be fine, yes. For future notice, you can order Amsoil ATF through talkinghorse for really cheap and you can use that for your power steering fluid.
Yes, you won't be disappointed. I just sucked out my old power steering fluid and refilled with the Mobil 1 ATF last week and everything seems to be running fine.
I just did this in my car with Mobil 1 ATF ... just wondering what you felt was not running fine which is now fine . I didn't go out yet but will see how this new fluid affects power steering ...
oh, btw, did you do it second time in 'few weeks' as suggested to increase the concentration of new fluid ?!? How many days is good to wait to do it again ??
Holy freaking apropos. I have not visited here in a few weeks and today in my 97 max noticed my level low, so what do I do? Come to maxima.org and ask a question. But wait! A thread, with all answers, already started. Thanks guys, I think I'll run off to autozone right now for some fluids
OK I tried this last night and got only around 2 oz out of the reservoir. What is the overall capacity of the system? It seems that this could take a lot of changes to have a meaningful effect on replacing the old with new.
Also, how fast does PS fluid circulate, and how long should be left between these small fluid replacement efforts? 3 miles driving? 30?
EDIT: To answer my circulation question, I'd guess it circulates quite quickly, because it seems there is an in and out tube from the reservoir, so presumably the fluid is cycled pretty quickly.
In normal driving conditions you will not understand anything. If you are "spirited" or drive at any competition-level old fluid overheats faster than new and you start "loosing" the power-steering assistance earlier.
Well, the power steering reservoir was completely empty when my son came back from an all-day trip.
So I added Prestone Power Steering Fluid with a leak stopper. After reading this forum, I'm worried that it's not the correct one
Do I need to suck it out with a turkey baster and replace it with NISSAN PSFII? The steering still is extremely difficult if not impossible. I added the fluid this morning, but haven't driven it.
Does anyone know the part number or size of the Power Steering hoses for the 4th Gen. ? I've had a leak for a while, I had someone turning the wheel while the car was running but I can't tell directly where it is coming from, and it's not leaking directly from the resourvoir. The fluid that leaked out is mostly on the frame under the radiator. I tried looking in the Haynes Manual but it didn't have the info I was looking for.
I just changed out my PS fluid with Mobil1 synthetic ATF....the difference in color was amazing...
Where did you guys buy your Turkey Baster? I didn't have one in hand so I just pulled the hose from the bottom of the reservouir....made a big mess but it now feels great to have synthetic fluid
. I didn't go out yet but will see how this new fluid affects power steering ... 
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