经研究和实验表明,现代发动机的寿命,主要是由其基础零件的抗磨性能所决定,这些零件以气缸、活塞、曲轴及其相关零件为代表。当这些零件磨损超标,汽车的动力性能下降,其现象表现便是:提速慢、超车难、耗油大、烧机油、冒蓝烟、冒黑烟、排放超标, The research and experiments show that the life of a modern engine is mainly determined by the wear resistance of its basic components, which are represented by cylinders, pistons, crankshafts and their related parts. When these parts wear excessive, the car’s dynamic performance decline, the phenomenon is: slow speed, overtaking difficult, fuel consumption, burning oil, blue smoke, black smoke, excessive emissions,