Some 30% of the world's car population spread over a large proportion of the world's land mass rarely experiences starting temperatures lower than 0°C (32°F) , but frequently encounters high temperatures in the order of 40-50°C (approx. 100-120°F). The present SAE ‘W’ classification, as applied to multi-grade oils, more than satisfies starting requirements in these climates but imposes unnecessary expense and limitations on the nations concerned.A proposal is made to extend the existing SAE classification by defining an SAE 30W number for use in temperate and tropical climates.Data generated from testing of representative oils in glassware and commercial engines are presented.


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    Titel :

    Low Temperature Viscosity Requirements for Engine Oils in Temperate and Tropical Climates


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    King, P. R. (Autor:in)

    Kongress:

    1977 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1977



    Erscheinungsdatum :

    1977-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Low temperature viscosity characteristics of used engine oils

    Didot,F.E. / Lonstrup,T.F. / Suntech,Marcus Hook,Us et al. | Kraftfahrwesen | 1980




    Low Temperature Viscosity Characteristics of Used Engine Oils

    Didot, F. E. / Lonstrup, T. F. | SAE Technical Papers | 1980