当发动机油底壳中的机油量不足时,机油泵会吸入空气,轴承与轴颈等摩擦副处会因为机油量少而润滑不良导致磨损加剧,甚至发生烧轴瓦的事故。一些驾驶员担心烧轴瓦,认为多加些机油总比少加好,于是加注过量的机油。这样虽然降低了烧轴瓦的可能性,但发动机工作时曲轴柄、连杆大端剧烈地搅动机油不仅增加了发动机内部功率的损失,而且因激溅到气缸壁上的机油就增多,容易产生烧机油冒篮烟的现象发生。因此,机油加注过量对发动机是不利的,机油量的多少 When the oil in the engine oil sump is not enough, the oil pump will suck the air, bearing and journal friction at the vice because of poor oil lubrication and lead to increased wear and tear, and even the occurrence of bearing bushings accident. Some drivers are worried about burning bushings, think more oil is better than less, so fill in excess oil. Although this reduces the possibility of burning bushings, but the engine crankshaft handle, the big end of the connecting rod violently stirred oil not only increases the internal power loss of the engine, but also due to splash on the cylinder wall of the oil will increase, prone to burn The phenomenon of oil basket smoke occurred. Therefore, excessive oil refueling is detrimental to the engine, the amount of oil