二冲程汽油机一般采用所谓的“凝固式”润滑,即汽油与机油按一定的比例混合后,在经过化油器时与空气形成可燃混合气,然后进入曲轴箱。这时可燃混合气中含有的机油便凝结在气缸壁、活塞、活塞环、活塞销和曲轴轴承的工作表面上,起润滑作用。正是由于这样的一种工作方式,所以对于加入二冲程汽油机中的机油,除对一般机油的普遍性的要求外,还有一些特殊要求。例如要有更好的高温性能和润滑性能,要有很好的与汽油混合的能力;为了减少火花塞上沉积物的生成,机油中一般不允许加入含钡、含锌的添加剂等。这样的机油有一个专用的名称,叫做“二冲程汽油机油”。二冲程汽油机要使用这种机 Two-stroke gasoline engines generally use the so-called “solidification ” lubrication, that gasoline and oil at a certain ratio after mixing, the carburetor to form a combustible mixture with air, and then into the crankcase. At this moment, the oil contained in the combustible mixture condenses on the working surfaces of the cylinder wall, the piston, the piston ring, the piston pin and the crankshaft bearing, and functions as a lubricant. It is because of such a working method, so for the two-stroke gasoline engine oil, in addition to the general requirements of the general oil, there are some special requirements. For example, to have better high-temperature performance and lubrication performance, have a good ability to mix with gasoline; In order to reduce the spark plug sediment generation, the oil is generally not allowed to add barium, zinc-containing additives. This oil has a special name, called “two-stroke gasoline engine oil.” Two-stroke gasoline engine to use this machine