Viscosity index (VI) which reflects a more direct indicator of the oil viscosity with temperature change of nature (ie viscosity-temperature properties of oil), a high viscosity index Used Yuchai excavator manufacturers, oil, showing the kind of oil a lesser degree of viscosity with temperature change; the other hand, Yunnan Used Yuchai excavators, bigger. Viscosity index known foreign manufacturers (such as Mobil, Shell, etc.) hydraulic oils are VI≥110, about viscosity index VI domestic advanced anti-wear hydraulic oil = 95. The foreign production of high viscosity index hydraulic oil (HV) and multigrade engine oil viscosity index are VI> 140. This is for the use of large-scale imports of hydraulic excavators and the use of domestic hydraulic oil (or use engine oil as hydraulic oil) users to pay special attention. Reduce the viscosity index oil will adapt to the ambient temperature range narrow, Used Yuchai excavator market, if not when using a non-farm Yuchai excavator sales, should the oil manufacturers for relevant information shall be for the use of oil to make the appropriate adjusted value should change settings related equipment (such as extreme temperature, etc.) when necessary. Good hydraulic oil cooling system for large hydraulic excavator hydraulic oil cooling system (or rather should the hydraulic oil temperature control systems) to improve, although the specific ways the manufacturers use different, but the basic idea is the same, both the temperature of the hydraulic oil in continuous operation in the balance in the ideal range, but also make the hydraulic system in the cold state can be quickly put to work when the temperature (up to normal operating temperature range of oil). In the case of a qualified hydraulic oil under the premise, when there is overheating hydraulic oil, hydraulic oil cooling temperature control system check procedures used Yuchai excavators Price _ _ Jinan Kim Ho used excavators Used Yuchai excavators used by the Shanghai Jin Hao Construction Machinery Limited. 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.