Myth 1: the higher the viscosity of engine oil, the better

一般来说，从润滑的角度来说粘度过大，自上料搅拌车启动时机油就上的慢，而车辆启动和机油没有完全热起来的时候对车辆的磨损是的，机油的作用之一是给发动机散热冷却。我们知道发动机冷却液主要负责发动机上部燃烧室周围零部件的冷却。

Generally speaking, from the point of view of lubrication, the viscosity is too high, and the oil starts slowly when the loading mixer starts. However, when the vehicle starts and the oil is not fully heated up, the wear of the vehicle is the biggest. One of the functions of the oil is to cool the engine. We know that the engine coolant is mainly responsible for cooling the parts around the upper combustion chamber of the engine.

除此之外的各个运动部件都要依靠机油来散热。如果粘度过大，单位时间内机油的流量小，则零部件的冷却效果就会差很多。相应的，零部件冷却不好，其使用寿命就会大打折扣。因此，机油选择合适的粘度才是对发动机的保护。

In addition, all moving parts rely on oil to dissipate heat. If the viscosity is too high and the oil flow per unit time is small, the cooling effect of parts will be much worse. Accordingly, the service life of the parts will be greatly reduced if the parts are not cooled well. Therefore, the oil to choose the appropriate viscosity is the greatest protection for the engine.

误区二：合成机油比矿物油粘度稀

Myth 2: synthetic oil viscosity is thinner than mineral oil

很多的人凭外观感觉会认为相同粘度等级合成机油粘度太稀机油压力会不好，实际上合成机油特性就在于此。因此发动机对于机油的粘度要求是低温启动和低温运转必须保证粘度足够低，才能减少磨损。自上料搅拌车发动机高温运转必须保证合适的粘度，才能保证足够的润滑效果。机油有个评价指标：粘度指数，粘度越高指数越高，说明机油的稳定性越好，全合成机油粘度指数可以达到160以上，而普通矿物机油粘度指数一般不会超过100.所以合成机油的优势只有在发动机高温和环境低温情况下才能展现出来。

Many people will think that the same viscosity grade synthetic oil viscosity is too thin, oil pressure will be bad, in fact, this is the characteristics of synthetic oil. Therefore, the engine oil viscosity requirements are low temperature start and low temperature operation, the viscosity must be low enough to reduce wear. The proper viscosity must be ensured for the high temperature operation of the self loading mixer engine to ensure the sufficient lubrication effect. There is an evaluation index of engine oil: viscosity index. The higher the viscosity, the higher the index, which indicates the better stability of the oil. The viscosity index of fully synthetic oil can reach more than 160, while the viscosity index of ordinary mineral oil generally does not exceed 100. Therefore, the advantages of synthetic oil can only be shown under high engine temperature and low ambient temperature.

自上料搅拌车发动机选择什么粘度等级的机油，是由发动机温度和发动机个零部件配合间隙以及零部件剪切强度决定的。

What viscosity grade oil is selected from the engine of charging mixer is determined by engine temperature, fit clearance of engine parts and shear strength of parts.

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For more questions or detailed information about the mixer, please visit our website: http://www.sdzkjf.cn There will be a lot of content in the website for reference only.