机油在工程机械的发动机中起着润滑、密封、冷却、清洗和防锈的重要作用,直接关系到机车能否正常运转并延长其使用寿命。因此,在发动机的使用过程中,机务人员对机油的检油的检查、添加与更换都十分重视。各制造厂家在产品使用说明书上,虽然规定了本机的换油周期,但由于发动机的磨轻重程度、机油的质量差异,甚至地区、气候或使用条件的不同,都会影响机油的换油周期。机油的价格较贵,有些大马力工程机械的用油量可达70 Engine oil in the construction machinery plays a lubricating, sealing, cooling, cleaning and rust-proof an important role, directly related to the locomotive can operate normally and extend its service life. Therefore, the use of the engine, the crew of the oil inspection of oil inspection, add and replace are very seriously. Various manufacturers in the product manual, although the provisions of this machine oil change intervals, but due to the severity of the engine grinding, oil quality differences, and even regions, climates or conditions of use will affect the oil drain intervals. The price of oil is more expensive, some large horsepower construction machinery oil consumption up to 70