Characteristics of Diesel Engine Oil for Heavy Duty Commercial Vehicles Achieving for both Fuel Economy and Reliability 2019-01-2243
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.
Citation: Nakamura, 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. Download Citation
Yoichiro Nakamura, Ken Hashimoto, Hideki Nakamura, Shinji Ejiri