Leaded premium (0.15 g Pb/l) and unleaded Eurograde motor fuels have been examined in respect of the limits for borderline knock in five cars. The fuels consisted of gasoline with only hydrocarbons and gasoline containing ethanol, methanol/butanol and ethanol/MTBE respectively corresponding to 2 % oxygen by weight. Under acceleration circumstances the oxygenated fuels indicated slightly better resistance to knock. At constant speed/full load (less than 4000 rpm) all the fuels are considered to be equilvalent. At higher engine speeds a tendency towards a slighlty inferior knock margin can possibly be traced for the E 5.5 fuel, although the margin remained satisfactory. The results indicate that the octane number raising effect of the oxygenates should be utilizable to the full.


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    Title :

    Road anti-knock performance with E5 and other motor gasolines


    Additional title:

    Antiklopfeigenschaften des Aethanolkraftstoffs E5 und anderer Fahrzeugkraftstoffe


    Contributors:


    Publication date :

    1986


    Size :

    6 Seiten, 8 Bilder, 2 Tabellen, 7 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Road anti-knock performance with E5 and other motor gasolines

    Brandberg,A. / Laveskog,A. / Federation of Swedish Farmers,SE | Automotive engineering | 1986


    Road testing anti-knock quality of motor gasolines

    Eatwell, H.J. | Engineering Index Backfile | 1951


    The Road Anti-Knock and Pre-Ignition Characteristics of Gasolines Containing Oxygenates

    Histon,P.D. / Roles,R.T. / BP Res.Cent.,GB | Automotive engineering | 1982


    Road antiknock performance of motor gasolines

    Alspaugh, M.L. / Hall, C.A. | Engineering Index Backfile | 1951


    CORRELATION OF KNOCK-RATING OF AVIATION GASOLINES

    Nutt, Arthur | SAE Technical Papers | 1934