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Brake bleed sequence

Chassis/Brakes/Steering/Wheels discussion
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M@dds
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Re: Brake bleed sequence

Post by M@dds » Tue Apr 23, 2013 8:57 pm

What quantity is usually enough to do a complete bleed chaps? I had some super blue racing brake fluid after reading a detailed thread.
Main reason for the recommendation of the above brand was due to the fact it's in a metal tin and apparently less prone to contamination by moisture/ contamination of water, especially when it's been left on a shelf in a shop or at home for a wiyal ( not sure how true it is though)

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Post by Merlin » Tue Apr 23, 2013 11:08 pm

4thgenphil wrote:
Merlin wrote:5.1? :? Super Dot 4 is better and hardly breaks the bank.
it does if you bleed them ALOT after track days Etc, dot 5.1 had very close results compared to super 4 IIRC
If you're using stuff like Motul yes, as you have to change that every year. Castrol super Dot 4 is only £15 odd per litre and can be used over a much longer period.

BOILING POINT:
DOT 3 - 205°C (dry) / 140°C (wet)
DOT 4 - 230°C (dry) / 155°C (wet)
DOT 5 (silicone) - 260°C (dry) / 185°C (wet)
DOT 5.1 (PAG) - 260°C (dry) / 185°C (wet)
Super Dot 4* - 300°C (dry) / 195°C (wet) (racing brake fluid)

* Super DOT 4: The main difference between DOT 4 and Super DOT 4 is the dry boiling point. Normal Dot4 is >260C whilst Super DOT 4 is more like >310C
http://www.opieoils.co.uk/pdfs/tech-art ... lained.pdf



Get 2L to be on the safe side, any excess can be used as clutch fluid.
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