The engine oil is an oil used for lubrication of various internal combustion engines. Recently, the vehicle and engine oil manufacture usually guarantee for oil change over 15000~20000 km mileage, but the most of driver usually change engine oil every 5000 km driving in Korea. In this case, it is possible to cause environmental contamination by used engine oil and increase the cost of driving by frequently oil change. In this study, we investigate the various physical properties such as flash point, pour point, kinematic viscosity, cold cranking simulator, total acid number, and four-ball test for fresh engine oil and used engine oil after vehicle driving (5000 km, 10000 km). The test result showed that the total acid number and wear scar by four-ball test of used engine oil had increased than fresh engine oil, but 2 kind of used oil (5000 km and 10000 km) had similar physical properties.
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이 논문을 인용한 문헌 (2)
Lee, Joung-Min ; Lim, Young-Kwan ; Jung, Choong-Sub ; Kim, Ye-Eun ; Han, Kwan-Wook ; Na, Byung-Ki 2013. "The study on performance of characteristics in engine oil by vehicle driving" 에너지공학 = Journal of energy engineering, 22(2): 237~244
Kim, Man Jae ; Lee, Woo Sin ; Jung, Jong Hoon ; Lee, Sang Hoon 2014. "Study on Electric and Magnetic Characteristics of Engine Oil in Transport Truck" 한국자동차공학회논문집 = Transactions of the Korean Society of Automotive Engineers, 22(3): 166~170