STP1192: Fleet Test Evaluation of Engine Coolants Using Sebacic Acid Inhibitor Technology

    Adamowicz, NC
    Design engineer, Ford Motor Company, Dearborn, MI

    Falla, DF
    Development chemist, Dow Chemical Canada, Inc., Sarnia, Ontario

    Pages: 19    Published: Jan 1993


    A three-year, twelve-car municipal fleet test was conducted to compare the relative merits of an extended life sebacic acid coolant and current high silicate alkaline phosphate coolant used in North America. The test was conducted under rigidly controlled conditions in accordance with ASTM Practice for Testing Engine Coolants in Car and Light Truck Service (D 2847).

    This paper will show the (1) depletion rates for chemical inhibitors used in the coolants and (2) actual photographs of cooling system component parts removed from the vehicles at the termination of this test.


    fleet, sebacic, phosphate, corrosion, aluminum, inhibitors, silicate, depletion, radiators

    Paper ID: STP25157S

    Committee/Subcommittee: D15.09

    DOI: 10.1520/STP25157S

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