Single and multigrade engine oils formulated with catalytic hydrodewaxed (MLDW) base stocks possess low-temperature fluidity properties superior to counterpart products using conventional solvent dewaxed base stocks. This low-temperature benefit for MLDW oils is demonstrated in CCS and MRV viscosity measurements and cold engine cranking studies. This advantage is a natural consequence of the composition differences imposed by the respective dewaxing processes. The MLDW process is more selective and more efficient than solvent dewaxing in the removal of paraffins to reduce lube oil pour point. It follows that MLDW oils have fewer paraffins available for wax-gel formation at low temperatures. The lower paraffin content is also responsible for the lower VI values for the MLDW base stocks. Thus, the superior low-temperature performance of MLDW oils is contrary to viscosity-temperature extrapolations.


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    Titel :

    Low-Temperature Performance Advantages for Oils Using Hydrodewaxed Base Stocks


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Rowe, C. N. (Autor:in) / Murphy, J. A. (Autor:in)

    Kongress:

    1983 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1983



    Erscheinungsdatum :

    31.10.1983




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Low-Temperature Performance Advantages for Oils Using Hydrodewaxed Base Stocks

    Rowe,C.N. / Murphy,J.A. / Mobil,US | Kraftfahrwesen | 1983


    Performance Advantages of Synthesized Commercial Engine Oils

    Lowther, H. V. / Keller, J. A. / Hetrick, S. S. | SAE Technical Papers | 1978


    Performance Advantages of Synthesized Commercial Engine Oils

    Hetrick,S.S. / Keller,J.A. / Lowther,H.V. et al. | Kraftfahrwesen | 1978


    Performance advantages of synthesized commercial engine oils

    Hetrick, S.S. / Keller, J.A. / Lowther, H.V. | Tema Archiv | 1978


    Low Temperature Rheology of Commercial Base Stocks

    Ravulapalli, Niranjan B. / VanArsdale, William E. | SAE Technical Papers | 1993