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Characteristics of Diesel Engine Oil for Heavy Duty Commercial Vehicles Achieving for both Fuel Economy and Reliability
ISSN: 0148-7191, e-ISSN: 2688-3627
Published December 19, 2019 by SAE International in United States
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When the engine oil evaporates in the crankcase, it is necessary to discharge to the outside of the engine or returns to the intake air as part of blow-by gas. The amount of oil content in the blow-by gas is preferable to be as small as possible. This paper researched the evaporation characteristics of diesel engine oil for heavy duty into blow-by gas using 5W-30 and 10W-30 engine oils with the equivalent to Noack. As a result, it is found that evaporate phenomenon cannot be explained well enough by just Noack and clarified of the oil evaporation mechanism in blow-by gas.
CitationNakamura, Y., Hashimoto, K., Nakamura, H., and Ejiri, S., "Characteristics of Diesel Engine Oil for Heavy Duty Commercial Vehicles Achieving for both Fuel Economy and Reliability," SAE Technical Paper 2019-01-2243, 2019, https://doi.org/10.4271/2019-01-2243.
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- ASTM D5800:Standard Test Method for Evaporation Loss of Lubricating Oils by the Noack Method
- JASO M355: Automotive Diesel Engine Oils
- ASTM D4485: Standard Specification for Performance of Active API Service Category Engine Oils
- Harigaya, Y., Suzuki, H., Ito, A., Soejima, M., Hamatake, T., A Study on the Evaporation of Multi-component Oil on the Cylinder Wall of a Diesel Engine, Transactions of Society of Automotive Engineers of Japan, Vol47, No.3, 2016
- ASTM D6375: Standard Test Method for Evaporation Loss of Lubricating Oils by Thermogravimetric Analyzer (TGA) Noack Method