Unleaded gasoline was used in a 30 car, 48,000 mile taxicab field test to study the effects of a deposit control (DC) gasoline additive and lubricating oil additives on engine deposits, wear, and other variables. The unleaded gasoline performed as well as or better than a leaded gasoline in this test when both gasolines contained the DC additive. Engine deposits were comparable, and wear and corrosion were reduced when unleaded gasoline was used.With unleaded gasoline, we found motor oils need a high level of ashless dispersant to obtain maximum varnish control. Also, in these test engines, an ashless oil gave the same wear protection with unleaded gasoline that an SE-type oil gave with leaded gasoline.A highly effective DC gasoline additive minimized carburetor, intake valve, and crankcase deposits with unleaded gasoline. This agreed with the effective performance that this additive had previously shown in leaded gasoline service. Also, unleaded fuel with the DC additive used with a nondispersant crankcase oil performed similarly to a nonadditive unleaded fuel used with an SE-type oil in the control of engine sludge and varnish.Unleaded gasoline was used in a 30 car, 48,000 mile taxicab field test to study the effects of a deposit control (DC) gasoline additive and lubricating oil additives on engine deposits, wear, and other variables. The unleaded gasoline performed as well as or better than a leaded gasoline in this test when both gasolines contained the DC additive. Engine deposits were comparable, and wear and corrosion were reduced when unleaded gasoline was used.With unleaded gasoline, we found motor oils need a high level of ashless dispersant to obtain maximum varnish control. Also, in these test engines, an ashless oil gave the same wear protection with unleaded gasoline that an SE-type oil gave with leaded gasoline.A highly effective DC gasoline additive minimized carburetor, intake valve, and crankcase deposits with unleaded gasoline. This agreed with the effective performance that this additive had previously shown in leaded gasoline service. Also, unleaded fuel with the DC additive used with a nondispersant crankcase oil performed similarly to a nonadditive unleaded fuel used with an SE-type oil in the control of engine sludge and varnish.


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    Titel :

    Unleaded Gasoline - Lubricant Requirements and Fuel Additive Performance


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Orrin, D. S. (Autor:in) / Kipp, K. L. (Autor:in) / Miner, W. R. (Autor:in)

    Kongress:

    National West Coast Meeting ; 1972



    Erscheinungsdatum :

    01.02.1972




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Effect of Unleaded Fuel on Lubricant Performance

    Johnson, R. H. / Reiland, W. H. / Crouse, W. W. | SAE Technical Papers | 1971


    Components for unleaded gasoline

    Hoffman, H.L. | Tema Archiv | 1980


    A method of distributing unleaded gasoline.

    Klein,R.H. / Tuuri,W.R. / Standard Oil Co. | Kraftfahrwesen | 1975


    Unleaded gasoline comes to western Europe

    Dabelstein,E.A. / Reglitzki,A.A. / Willenbockel,O. et al. | Kraftfahrwesen | 1987


    Optimum Octane Number for Unleaded Gasoline

    Russum, L. W. / Wagner, T. O. | SAE Technical Papers | 1973