1987-11-01

Development and Evaluation of High Performance Diesel Engine Oils 872032

A series of high performance diesel engine oils were developed by using diesel engine dynamometer tests measuring oil consumption, dispersancy, oxidation stability, engine cleanliness, wear, and corrosion protection. The three multicylinder diesel tests included in the new CE oil category—Mack T-6, Mack T-7 and Cummins NTC-400—were used in combination with seven other single-cylinder or multicylinder diesel engine tests to develop these oils and evaluate them versus industry reference oils. Major considerations on the oil formulation approach were engine deposits in the Cummins NTC-400, engine deposits and ring wear in the Mack T-6, and oil dispersancy in the Mack T-7. Field evaluations were used to define the relevance of engine dynamometer testing.

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