S2000 Under The Hood S2000 Technical and Mechanical discussions.

brake fluid replacement quantity?

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Old Jun 9, 2006 | 03:50 PM
  #11  
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I typically store opened fluid bottles inside a zip-lock bag as an extra precaution. However, I do agree with Mike, full-bleed == new bottle.
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Old Jun 10, 2006 | 09:29 AM
  #12  
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Originally Posted by mikegarrison,Jun 9 2006, 03:28 PM
32 ounces (approx one liter) will be more than enough, but that's OK. 12 ounces would not be enough.

As for the leftover fluid:

If you keep the cap on the bottle, the fluid in the bottle will age as slowly as or slower than the fluid in the car. But it will age. So keep the unused fluid in case you need to do a minor bleed of the brakes before your next flush. But the next time you do a complete flush, use brand new fluid.
Sorry, but what do you mean by age?

age as if they will break down in molecule?


??
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Old Jun 10, 2006 | 12:20 PM
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Originally Posted by iam7head,Jun 10 2006, 12:29 PM
Sorry, but what do you mean by age?

age as if they will break down in molecule?


??
Brake fluid is hydroscopic. It will absorb water from the air.

If you remember high school chemistry, impurities will lower a substance's boiling point. So the water in the brake fluid will cause it to more easily boil. That's bad.

http://auto.howstuffworks.com/question451.htm
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Old Jun 12, 2006 | 12:31 AM
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Originally Posted by ruexp67,Jun 10 2006, 12:20 PM
Brake fluid is hydroscopic. It will absorb water from the air.

If you remember high school chemistry, impurities will lower a substance's boiling point. So the water in the brake fluid will cause it to more easily boil. That's bad.

http://auto.howstuffworks.com/question451.htm
i know that but that have anything to do with age? as if a good wine?
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Old Jun 12, 2006 | 02:46 AM
  #15  
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The longer the fluid exists the longer it gets the chance to absorb water from the air. I doesnt matter if its in a bottle or in your brake system.
A little leftover in a (big) bottle will absorb all the water in the air that is also in that bottle => not good.
New bottles are filled to the top (less air present) and sealed.
Maybe even sealed under a "controlled enviroment" => no air but something else above the fluid during storage.
I dont know if the fluid itself desintigrates / oxidizes / anythingelse over time.


Driving on vapour is tricky, you never know if you make it home.
Braking on vapor is a killer for sure.
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Old Jun 12, 2006 | 04:21 AM
  #16  
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Tell me about it. 114MPH on the track. Get to the braking area and the brake pedal goes to the floor. Thankfully there was plenty of run-off area, as I used ALL of it.

Brake problems == NO FUN AT ALL!
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