Bleeding brakes with Castrol SRF | FerrariChat

Bleeding brakes with Castrol SRF

Discussion in 'Technical Q&A' started by FerrariCognoscenti, Oct 8, 2022.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. FerrariCognoscenti

    FerrariCognoscenti Formula 3

    Jan 19, 2021
    2,429
    East Coast
    I’m going to be running Castrol SRF in my 458. My concern is that because it is only available in a 1L bottle, how exactly do I bleed my brakes if I only need, say…0.25L or less to top of the reservoir during a track side bleed without having to break open a whole new bottle and have a large quantity of SRF fluid unused that will go bad before the next time I need it?

    Are guys who run Castrol SRF and semi frequently bleed their brakes just wasting a lot of unused brake fluid because it’s not available in a smaller quantity like Motul RBF 660?

    Thanks for any advice
     
  2. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,661
    Central NJ
    Full Name:
    Dominick
    Store it in a nice place and the bottle should be good for 2 years

    Sent from my moto g power using Tapatalk
     
  3. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,661
    Central NJ
    Full Name:
    Dominick
    And if you have suitable smaller containers ..maybe from another brand
    .fill those up .
    Less air in bottle is better

    Sent from my moto g power using Tapatalk
     
  4. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    36,750
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    At least.
     
  5. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    36,750
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    Those plastic bottles reseal quite well.
     
  6. FerrariCognoscenti

    FerrariCognoscenti Formula 3

    Jan 19, 2021
    2,429
    East Coast
    Once opened, how long is the remaining fluid in the bottle good for until it goes bad/collects condensation?
     
  7. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,661
    Central NJ
    Full Name:
    Dominick
  8. wthensler

    wthensler F1 Rookie
    Silver Subscribed

    Apr 27, 2015
    3,470
    Gator Country, FL
    Full Name:
    William
    You should be able to save the unused portion in the original container. It shouldn’t go bad if kept in a cool, dark place. Depending how frequently you’re bleeding your lines, it won’t go bad before it’s used up (in your case certainly not).

    I’ve just had mine bled and am set for tomorrow at Sebring, Fall driving season is finally upon south FL and track conditions look great!
     
  9. FerrariCognoscenti

    FerrariCognoscenti Formula 3

    Jan 19, 2021
    2,429
    East Coast
    That shelf life I assume is unopened. Once the bottle is opened and the fluid is exposed to the air, it must go down significantly but what that is I don’t know.


    Sent from my iPhone using Tapatalk
     
  10. FerrariCognoscenti

    FerrariCognoscenti Formula 3

    Jan 19, 2021
    2,429
    East Coast
    Nice William!

    I’m at Summit Point this weekend racing in the SCCA Mid Atlantic Road Racing Series in a Spec Racer Ford. Qualifying was today, the race is tomorrow.
     
    wthensler likes this.
  11. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,661
    Central NJ
    Full Name:
    Dominick
    I read the spec and the way it describes it is after a drum is open .. so if a open drum last 2 years a sealed bottle will last at least that .

    If you want to be 10000 percent sure ..send a not to Castrol ..they will answer probably within a few days

    Sent from my moto g power using Tapatalk
     
  12. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    28,545
    socal
    #12 fatbillybob, Oct 8, 2022
    Last edited: Oct 8, 2022
    Considering motul 600 is 600 dry boil and SRF is 518 wet, I would rather have clean dry, cheaper motul 600 than more costly but leave it in longer to collect water SRF. But if the brakes are up the task you should not have to worry about fluid past a simple dot 4 spec.. There was a time we were racing vettes in SCCA where we killed race pads and cracked rotors by the end of the weekend. Then due to brake failure at the Runoffs and a trip via AirAmbulance SCCA allowed real brakes. Then pads lasted 3 race weekend and rotors the entire season or two! Fluid was Dot whatever Valvoline synthetic cheap stuff from Napa.

    If my brake system was marginal fluid is not my 1st fix.
     
  13. raemin

    raemin Formula 3

    Jan 16, 2007
    2,256
    Lyon (FR)
    Full Name:
    R. Emin
    If you want to extend shelf life, pour some butane in the bottle. That's how we were protecting photographic chemestry once the bottes were opened. The gas is heavier than air, so makes a protective layer at the surface of the liquid.
     
  14. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    36,750
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    Try that in a street car without race brakes. Sorry, stupid answer. Not everyone here, in fact almost none are running race brakes and you are very aware of that.

    A lot of street cars brakes fluid goes first.
     
  15. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    36,750
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    No. Its packed in nitrogen. Unopened it absorbs nothing. And if flushed thoroughly it will use the majority of that 1 liter bottle so the remains are of little consequence.
     
    2NA likes this.

Share This Page