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Impact of Non-Phosphorus and Non-Ash Engine Oil on After-Treatment Devices
Technical Paper
2014-01-2782
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Automobile exhaust gas contains various harmful substances other than carbon dioxide, so exhaust gas post-processing devices have been developed to reduce their environmental load. Engine oil has contributed to the improvement of automobiles' environmental performance due to its excellent fuel-saving and long-drain properties. Recently, the lifetime of an exhaust gas post-processing device has been reported to decrease due to ash and phosphorus in engine oil. We have developed non-phosphorus and non-ash engine oil (NPNA), in which metal-based detergents and zinc dialkyldithiophosphate (ZnDTP) were not contained. We have performed a verification test for NPNA using an actual engine. In a performance test for a diesel particulate filter (DPF), the amount of soot and ash deposited onto a DPF was smaller when NPNA was used than when commercially available engine oil was used. In a performance test for catalysts, the exhaust gas purifying ratio was higher when NPNA was used than when commercially available engine oil was used.
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Citation
Iwasaki, J., Shimizu, Y., Fujita, H., and Kasai, M., "Impact of Non-Phosphorus and Non-Ash Engine Oil on After-Treatment Devices," SAE Technical Paper 2014-01-2782, 2014, https://doi.org/10.4271/2014-01-2782.Also In
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