Cold-start, short-trip driving causes the accumulation of fuel, water, and other contaminants in oil. In this type of service the engine oil degrades at a rapid rate. To gain a better understanding of the degradation, the oil under these conditions was observed and photographed through a transparent oil pan. In addition the oil was analyzed to provide a quantitative measure of the degradation. Oil analysis results confirmed what was observed visually; once oil became warmer, sludge and contaminants were removed, and many of the oil's properties (acid number, pentane insolubles, water in oil, etc.) improved.


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    Title :

    Observations through a transparent oil pan during cold-start, short-trip service


    Additional title:

    Beobachtungen durch durchsichtige Ölwanne während des Kaltstarts und bei kurzen Fahrten


    Contributors:

    Published in:

    Publication date :

    1991


    Size :

    17 Seiten, 23 Bilder, 3 Tabellen, 9 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Observations through a transparent oil pan during cold-start, short-trip service

    schwartz,S.E. / General Motors Research Lab.,Fuels and Lubricants Dep.,US | Automotive engineering | 1991


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