In the thirty-eighth annual statistical survey of current model vehicles conducted by the Coordinating Research Council, Inc., test data were obtained on 407 1984 model vehicles, including 345 US vehicles and 62 imported vehicles. Eighteen laboratories participated in this Survey. Maximum octane number requirements were determined by testing under part-throttle conditions, as well as at maximum-throttle. Requirements are expressed as the Research octane number, Motor octane number, and (R+M)/2 octane number of the reference fuel producing knock which was recurrent and repeatable at the lowest audible level. A new definition of borderline knock was used in this Survey; this change may have affected the 1984 Survey results relative to previous years' Surveys. Estimated octane number requirements for the US vehicles are weighted in proportion to the 1984 vehicle model production figures and, for the imported models, in proportion to import sales volume in the United States. Keywords: Charts; and Tables(Data). (Author)


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    Titel :

    CRC (Coordinating Research Council) Octane Number Requirement Survey, 1984


    Erscheinungsdatum :

    1985


    Format / Umfang :

    272 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch