A series of SAE 5W-30 and SAE 10W-30 engine oils was evaluated in a New York City taxi fleet to study the performance of prototype API SG engine oils. Key formulation variables studied were SAE viscosity grade and Viscosity Index improver chemistry. A good correlation was established between Sequence VE sludge and varnish results and field performance. The deposit control value of dispersant Viscosity Index improvers was demonstrated. Formulations based on polymethacrylate Viscosity Index improvers performed directionally better in the field than the Sequence VE results predicted. Overall, the field performance of API SG quality oils was excellent.


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    Titel :

    Engine Oil Formulation Effects in Severe Field Service and Sequence VE Tests


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Fuels & Lubricants Meeting & Exposition ; 1992



    Erscheinungsdatum :

    01.10.1992




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Formulation Effects in a Severe Passenger Car Diesel Engine Test

    Bell, I.A.W. / Robson, R. | SAE Technical Papers | 2002


    Formulation effects in a severe passenger car diesel engine test

    Bell,I.A. / Robson,R. / Infineum,GB | Kraftfahrwesen | 2002


    Test sequence IV -- Measuring cam and tappet scuffing in "most severe" engine service

    Beckman, E.W. / Fales, W.K. | Engineering Index Backfile | 1960


    Base Oil Effects in Sequence IIID and Sequence V-D Engine Tests

    Hogue, Charles H. / Barrer, Daniel E. / Supp, James A. et al. | SAE Technical Papers | 1989