Laboratory studies using bench, chemical and dynamometer tests were carried out to define some of the ways in which fluid degradation may occur and affect the serviceable life of an automatic transmission, as well as how components, individually or in combination, may accelerate or retard fluid degradation. Once these details were defined, the test results indicated two major conclusions. First, degradation products of an automatic transmission fluid (acids, sludges, varnish forming products, and so on) should be considered as new fluid components, since they may have more effect on transmission performance than the original components. And secondly, retention of desirable friction control properties must be a prime consideration in the design of a satisfactory automatic transmission fluid.Laboratory studies using bench, chemical and dynamometer tests were carried out to define some of the ways in which fluid degradation may occur and affect the serviceable life of an automatic transmission, as well as how components, individually or in combination, may accelerate or retard fluid degradation. Once these details were defined, the test results indicated two major conclusions. First, degradation products of an automatic transmission fluid (acids, sludges, varnish forming products, and so on) should be considered as new fluid components, since they may have more effect on transmission performance than the original components. And secondly, retention of desirable friction control properties must be a prime consideration in the design of a satisfactory automatic transmission fluid.Laboratory studies using bench, chemical and dynamometer tests were carried out to define some of the ways in which fluid degradation may occur and affect the serviceable life of an automatic transmission, as well as how components, individually or in combination, may accelerate or retard fluid degradation. Once these details were defined, the test results indicated two major conclusions. First, degradation products of an automatic transmission fluid (acids, sludges, varnish forming products, and so on) should be considered as new fluid components, since they may have more effect on transmission performance than the original components. And secondly, retention of desirable friction control properties must be a prime consideration in the design of a satisfactory automatic transmission fluid.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Some Physical Effects of Transmission Fluid Degradation


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1966 Automotive Engineering Congress and Exposition ; 1966



    Publication date :

    1966-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Physical and Chemical Properties of a Typical Automatic Transmission Fluid

    Linden, James L. / Kemp, Steven P. | SAE Technical Papers | 1990


    Physical and chemical properties of a typical automatic transmission fluid

    Kemp,S.P. / Linden,J.L. / General Motors,US | Automotive engineering | 1990


    Effects of Transmission Fluid on Clutch Performance

    Schade, C. W. | SAE Technical Papers | 1971


    Automatic Transmission Fluid - Component Effects on Friction

    Newingham, T. D. | SAE Technical Papers | 1963


    Transmission Fluid

    Chen, Yong | Springer Verlag | 2020