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The Impact of Passenger Car Motor Oil Phosphorus Levels on Automotive Emissions Control Systems
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Abstract
A 100,000-mile fleet test in nine gasoline-powered passenger cars was carried out. The impact of motor oil phosphorus levels on engine durability, oil degradation, and exhaust emissions has been previously described. The results of additional emissions control systems studies, and measurements of the engine oil additive elements which are present on the catalysts, are now presented. These studies include conversion efficiencies for the aged catalyst at the end of the test by a combination of light-off experiments, air/fuel sweep tests, and an auto-driver FTP. The performance of the lambda sensors is also presented. The relationships between engine oil additive levels and composition and emissions systems durability is presented.
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Citation
Culley, S., McDonnell, T., Ball, D., Kirby, C. et al., "The Impact of Passenger Car Motor Oil Phosphorus Levels on Automotive Emissions Control Systems," SAE Technical Paper 961898, 1996, https://doi.org/10.4271/961898.Also In
References
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- (2a) ASTM Subcommittee D02.B.01 Passenger Car Engine Oil Classification Task Force Meeting February 2 1995 San Antonio, TX (2b) SAE Fuels and Lubricants Technical Subcommittee 1, Engine Oil/Catalyst and Oxygen Sensor Compatibility Task Force Status Report October 1985
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