Automatic transmission fluids (ATFs) are required to possess a high level of antiwear (AW) characteristics in order to function properly in the multitude of applications where such products are used. Generally DEXRON®-II* or MERCON®** fluids have given good AW performance in the field.However, ATFs of different chemistries might exhibit different levels of AW performance. Experimental work with ATFs of different chemistries has shown wide differences in AW levels. Thus, tests were carried out with the GM power steering pump test, the vickers pump (MERCON® procedure) test, the FZG Low-Speed Wear test, the CRC L-20 gear test and several industrial pump tests. The results show that significant amounts of metals in the product detract from some aspects of the AW properties, and an ashless formulation can be the best choice.


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    Title :

    Antiwear Characteristics of Automatic Transmission Fluids


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1989 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1989



    Publication date :

    1989-09-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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