Development of a High Shear Rate Capillary Viscometer for Engine Oils

    Published: Jan 1980

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    A high shear rate capillary viscometer has been developed. It is suitable for measuring the viscosity of engine oils at shear rates of 105 to 106 s-1 and at temperatures to 150°C, conditions which are within the range experienced by oils in automobile engines. It has proven useful for evaluating the total shear stability of VI-improved oils and is also being used for interpreting laboratory engine friction testing.

    Author Information:

    Rein, SW
    Beacon Research Labs. Texaco, Inc., Beacon, NY

    Alexander, DL
    Beacon Research Labs. Texaco, Inc., Beacon, NY

    Committee/Subcommittee: D02.07

    DOI: 10.1520/STP27341S

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