MNL1-8TH

    Automotive Spark-Ignition Engine Fuel

    Published: Jan 2010

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    Abstract

    AUTOMOTIVE SPARK-IGNITION ENGINE FUEL consists of gasoline or gasoline-oxygenate blends used in internal combustion spark-ignition engines, as opposed to engine fuels used in diesel or compression-ignition engines. These spark-ignition engine fuels are used primarily in passenger car and highway truck service. They are also used in off-highway utility trucks, farm machinery, two- and four-stroke cycle marine engines, and other spark-ignition engines used in a variety of service applications. ASTM D4814, Specification for Automotive Spark-Ignition Engine Fuel, defines gasoline as a volatile mixture of liquid hydrocarbons, containing small amounts of additives. A gasoline-oxygenate blend is defined as a fuel consisting primarily of gasoline, along with a substantial amount of one or more oxygenates. An oxygenate is an oxygen-containing, ashless organic compound, such as an alcohol or ether, which can be used as a fuel or fuel supplement. Ethanol is the predominant oxygenate in use today. Spark-ignition engine fuel includes both gasolines and gasoline-oxygenate blends. Gasoline is a complex mixture of relatively volatile hydrocarbons that vary widely in their physical and chemical properties. It is a blend of many hydrocarbons derived from the fractional distillation of crude petroleum and from complex refinery processes that increase either the amount or the quality of gasoline.


    Author Information:

    Gibbs, Lewis M.
    Chevron Products Company, Richmond, CA

    Bonazza, Ben R.
    TI Automotive, Lapeer, MI

    Furey, Robert L.
    Furey & Associates, LLC, Rochester Hills, MI


    Paper ID: MNL11642M

    Committee/Subcommittee: D02.A0

    DOI: 10.1520/MNL11642M


    CrossRef ASTM International is a member of CrossRef.

    ISBN10:
    ISBN13: 978-0-8031-7001-8