The use of diesel oil is essential, mainly from the lubrication, cooling, cleaning and so on. Therefore, many drivers will pay attention to check the oil in the oil, according to the standard Add, but it ignores the check the oil quality and oil change has changed, causing some of the engine's moving parts are always in poor lubrication operating environment, how the price of second-hand digging machine operator, thus speeding up the various mechanical wear and tear. Under normal circumstances, the loss of oil is not large, hand digging machine prices, but very easy to pollution, thus losing a role in protecting the diesel engine. Diesel oil used for engineering machinery, such as CF-4 grade of oil, medium-sized second-hand digging machine prices, where C represents the diesel engine oil; F representative of the quality levels, each increment of a letter, a large second-hand digging machine prices, oil performance will be better than the first one, the letters more reliable, higher quality grade; "- 4" riser grade engine oil performance, at the same level of oil, the higher the number, the better the quality. For imported models in the choice of oil is required in accordance with its engine fueling mode to choose: the choice of direct-injection turbocharged engine CF-4 grade oil can; EFI supercharged engine you need to use the CH-4 rating or higher grade oil to ensure the normal operation of the engine. Used excavator price lists, Kim Ho used excavators (certified), second-hand digging machine prices provided by Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) is the Shanghai Minhang District, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Kim Ho used excavators in leadership with the staff warmly welcome all inquiries negotiations to create jinhao used excavators better future.