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Thread: TRW Lucas GP600 Racing Brake Fluid

  1. #1
    Senior Member gslrallysport's Avatar
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    Default TRW Lucas GP600 Racing Brake Fluid


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    Lucas Grand Prix 600 Racing Brake Fluid!

    Unlike other RBF600's Lucas is backward compatible with the lower DOT fluids, so if you get stuck needing to fill up with other fluid, it won't have any adverse effects, other than lower its performance...

    TRW GP600 Dot 4 Racing Brake Fluid
    Dry - Min 310
    Wet - Min 204


    That's about the best out there short of Castrol SRF, or GS610. But significantly cheaper than either of them at $65 for a 1L bottle.

    For comparison, some other popular brands:
    Motul Dot 5.1
    270 dry
    185 wet

    Castrol Response Super Dot 4
    286 dry
    184 wet
    Last edited by gslrallysport; 31st March 2009 at 09:45 AM.
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    sorry i might be really dumb bbut what is the wet and dry number refering too? sorry for the noob question
    RIP Carly - a smile to light the world.
    06/07/2011

  • #3
    Senior Member gslrallysport's Avatar
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    Wet and dry refers to the amount of moisture that the fluid has absorbed. 'Dry' refers to 0% water, whilst 'wet' refers to 2% moisture absorbtion. Pretty much all Dot 4 brake fluid, whether it's high performance (like an RBF) or normal street fluid will go 'wet' after between 6-12 months.

    That's why replacing fluid regularly is more important that buying super duper pads as you can see the massive difference 'wet' makes to fluid performance.

    Also, need to update that, the 1L bottle is now $65... still miles cheaper than SRF at $130/L....
    - GSL RallySport - Ph: 1300 884 836 -
    Sick of paying too much for high performance brake pads? Want high performance and cold bite with low rotor wear?
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    Senior Member gslrallysport's Avatar
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    Have a squiz here:
    http://en.wikipedia.org/wiki/DOT_4

    I'm sure out standard for wet is only 2% (not 3.7%), but I could be wrong... either way wet is no more than 12 months of regular use.
    - GSL RallySport - Ph: 1300 884 836 -
    Sick of paying too much for high performance brake pads? Want high performance and cold bite with low rotor wear?
    - QFM Performance Brake Pads -
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    oh so its boiling point?

    thanks for the heads up
    RIP Carly - a smile to light the world.
    06/07/2011

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    silicone based?

  • #7
    Senior Member gslrallysport's Avatar
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    Quote Originally Posted by cracker View Post
    silicone based?
    No, so it's fine for street use, and fine to mix with existing brake fluid (ie. don't need to flush system out completely before use).
    - GSL RallySport - Ph: 1300 884 836 -
    Sick of paying too much for high performance brake pads? Want high performance and cold bite with low rotor wear?
    - QFM Performance Brake Pads -
    Also specialising in
    - DMS High Performance Shock Absorbers - Monit Rally Computers -

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