Browse Publications Technical Papers 2004-01-2987
2004-10-25

Development of the Sequence IIIG Engine Oil Certification Test 2004-01-2987

American Society for Testing and Materials (ASTM) Sequence III Engine Oil Certification Tests have been used for the past forty-five years to evaluate lubricant performance characteristics for valvetrain wear, viscosity increase, and piston deposit formation. Minimum performance standards for passenger car light duty gasoline engine oil categories are set by the International Lubricants Standardization and Approval Committee (ILSAC) (1) and the American Petroleum Institute (API) (2). This paper describes the development of the new ASTM Sequence IIIG Engine Oil Certification Test for use in evaluating the performance characteristics of engine oils meeting the next generation, low sulfur, low phosphorus, ILSAC GF-4 and API licensing requirements.

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