DONGJIN CHEMISTRY CO.LTD - Wonju, South Korea

Motor oils are being used widely for the purposes of reducing wear of equipments and manintaining long life of equipments due to smooth lubricating operation and cooling heat caused by friction power. Mineral oils were developed from the 20th century after using vegetable oils as lubricating oil in the 18~19th century. Since then, many petroleum-refining companies have been studying and developing better motor oils including new additives for lengthening equipment life and improving performance.However conventional motor oils developed up to now had to be charged newly due to sludge & carbon and decreased viscosity as time goes by, so its waste oils had become one of contaminants in the environment.Considering our situation for non-producing country of crude oil and heavy burden of  

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purchasing crude oil, our development of state-of-the-art motor oil with low consumption has become a theme task now.In this context, president of