There is a quite a wide range of brake fluid performance parameters affecting the lifetime of a brake fluid while in service in a car. However, in particular a high boiling point stands out as one of the most important product characteristics, in order to provide adequate protection against vapor lock in a car's brake system.Using laboratory experiments and on the road car trials, we have investigated a number of key parameters that affect brake fluid service life. In particular we have compared the boiling performance of DOT 3 versus DOT 4 brake fluid types, i.e. non-borated versus borated glycol ether based types. The results lead us to the conclusion that DOT 4 compared to DOT 3 brake fluid offers consistently better boiling point performance; i.e. up to several years DOT 4 offers a considerable better margin against vapor lock.Furthermore, comparing different types of DOT 4 fluids in various car trials, we obtained solid evidence that higher wet boiling point fluids offer the potential to increase the service interval, provided the brake system minimizes moisture ingestion.


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    Title :

    A Study on the Service Interval Performance of Borated and Non-Borated Glycol Ether Brake Fluids


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2001 World Congress ; 2001



    Publication date :

    2001-03-05




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    A Study on the Service Interval Performance of Borated and Non-Borated Glycol Ether Brake Fluids

    Morsink, J. B. W. / van Grieken, M. G. F. M. / de Jong, R. et al. | British Library Conference Proceedings | 2001


    A study on the service interval performance of borated and non-borated glycol ether brake fluids

    Morsink,J.B. / van Grieken,M.G. / de Jong,R. et al. | Automotive engineering | 2001


    Glycol ether brake fluids

    Brown, R. | Tema Archive | 1974


    Glycol Ether Brake Fluids

    Brown, R. G. | SAE Technical Papers | 1974