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Thread: Unopened brake fluid shelf life?

  1. #1
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    2nd March 2018 - 15:32
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    Unopened brake fluid shelf life?

    Pretty much what the thread title says. There is a variety of opinions for opened containers, but little info on how long you should keep unopened fluid. I have some that was made in 10/2017 and am hesitant to use it.

  2. #2
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    12th September 2004 - 17:40
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    I think/hope the fluid will be ok ? I've just changed fluid and bled the front brakes on the 14 . I looked at the bottle which had been opened at least 5 yrs ago and carried on.

    Just waiting for a nice day to test the work....

    You'd never go hungry with Nigella Gaz.
    If it weren't for flashbacks...I'd have no memory at all..

  3. #3
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    2nd March 2018 - 15:32
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    I ordered this. Probably overkill, but not much more expensive than Super DOT 4 brake fluid.


  4. #4
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    3rd March 2008 - 11:55
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    Got me wondering, so off to google we go

    understanding-brake-fluid-shelf-life-and-other-important-fluids
    Riding cheap crappy old bikes badly since 1987

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  5. #5
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    2nd March 2018 - 15:32
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    That's pretty much what I found. The stuff I have is probably OK but I'm not comfortable using 7- year old fluid in my front brake. Probably fine for the rear though!



    Sent from my SM-S906E using Tapatalk

  6. #6
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    Given that the problem with old brake fluid is that it can absorb moisture, I suppose in theory it could be heated to boil the water off, before using it in a braking system. You'd have t be pretty desperate to save a dollar, though.
    it's not a bad thing till you throw a KLR into the mix.
    those cheap ass bitches can do anything with ductape.
    (PostalDave on ADVrider)

  7. #7
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    2nd March 2018 - 15:32
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    Quote Originally Posted by pete376403 View Post
    Given that the problem with old brake fluid is that it can absorb moisture, I suppose in theory it could be heated to boil the water off, before using it in a braking system. You'd have t be pretty desperate to save a dollar, though.
    You should make a YouTube video!

    Sent from my SM-S906E using Tapatalk

  8. #8
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    25th March 2004 - 17:22
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    Only the slow use their brakes.

    FTW and FTP.

    And Fuck Mom. In a mirror.
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  9. #9
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    25th June 2012 - 11:56
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    Talking

    Some people leave original fluid in brake system longer than seven years lol
    It’s prob ok. Please report back after first high speed run
    Govt gives you nothing because it creates nothing - Javier Milei

  10. #10
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    2nd March 2018 - 15:32
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    I had the front brake lever go soft during a ride over the hills east of Coromandel Town. I've flushed a full reservoir of fresh RBF600 through each calliper so it should be OK now.

    Sent from my SM-S906E using Tapatalk

  11. #11
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    The brakes feel better - a few very small air bubbles came out when I changed the fluid, but I am surprised at the difference in feel.

    Sent from my SM-S906E using Tapatalk

  12. #12
    Join Date
    12th September 2004 - 17:40
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    Quote Originally Posted by SaferRides View Post
    The brakes feel better - a few very small air bubbles came out when I changed the fluid, but I am surprised at the difference in feel.

    Sent from my SM-S906E using Tapatalk
    Me too SaferRides, front lever felt good and solid after a change of fluid and a bleed ! This mornings ride was magic as well,little or no traffic to speak of on the roads I go.

    You'd never go hungry with Nigella Gaz.
    If it weren't for flashbacks...I'd have no memory at all..

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