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    MNL69

    Discussion on Uses of the Specification for Ethanol Fuel Blends (ASTM D5798)

    Published: Jun 2016


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    Abstract

    Ethanol debuted as the primary component in certain motor fuel blends in the early 1990s. These high-ethanol content fuel blends are restricted for use in flexible-fuel vehicles (FFVs), sometimes referred to as “dual-fueled vehicles” or “variable fuel vehicles.” A FFV is one that can operate on gasoline containing no ethanol, fuel blends of 85 % by volume denatured fuel ethanol, or any combination of the two. Describing the performance and compositional characteristics for a predominantly ethanol motor fuel is the goal of ASTM D5798, Standard Specification for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines (Specification D5798 or more simply D5798). Specification D5798 contains the necessary details to blend a fit-for-purpose motor fuel for FFVs while providing guidance on regulatory requirements for alternative fuels and identification of key considerations to ensure acceptable performance for consumers.

    Keywords:

    ASTM D5798, denatured fuel ethanol, blending gasoline


    Author Information:

    Moore, Kristin A.
    KMoore Consulting LLC, Heyworth, IL


    Committee/Subcommittee: D02.A0

    DOI: 10.1520/MNL6920150017