汽油不加铅能使汽车尾气的排放得到改善,使汽车密集的城市空气环境得到净化,这是汽油无铅化最主要的好处。与此同时,汽车使用无铅汽油还有一些其它的益处。其一,可以减轻汽车尾管和消声器的腐蚀。因为所加的铅抗爆剂中含有能引起金属腐蚀的成份,如溴化物、氯化物等。其二,可以减轻火花塞的污染,延长使用寿命。其三,可以减少发动机内的沉积物,有利于发动机正常运行。其四,机油的污染也会减少,能 The lead-free gasoline can improve the emissions of automobile exhaust and decontaminate the automobile-intensive urban air environment, which is the most important benefit of lead-free gasoline. At the same time, there are other benefits to using unleaded gasoline in cars. First, you can reduce the car tail pipe and muffler corrosion. Because of the addition of lead antiknock agent can cause corrosion caused by metal components, such as bromide, chloride and so on. Second, you can reduce the spark plug pollution, extend the service life. Third, you can reduce the sediment within the engine, is conducive to the normal operation of the engine. Fourth, the oil pollution will reduce, can