不少车主在去加油站加油时会遭到推销燃油宝,告诉你不仅更省油还能清除积碳,有不少车主信以为真,有事没事来一瓶。那么你的爱车是否需要用燃油宝?下面小编就为你揭开燃油宝的“内幕”
事实上燃油宝并没有那么玄妙,也没有广告里说的那么神奇,它只是积碳清除后恢复了发动机油耗健康状态,减少了汽油的浪费而已。
这些年出于环保的考虑,汽油质量确实在提升,2020年全国还将普及乙醇汽油,虽然乙醇具有更强的清洁作用,但是在加乙醇汽油前,老车最好先用一段时间燃油宝或直接清洗油路,以免乙醇汽油清洗下来的杂质对发动机内部产生更大的副作用。
燃油宝一般分为三大类:清洁型、养护型、动力提升型。
清洁型以除积碳为主要目标,养护型以抑制积碳为目的,动力提升型是为了提高汽油中的辛烷值,防止低品质汽油引起发动机爆震,提升动力为目的。
其实清洁型和养护型差不多,只不过养护型的清净能力没有清洁型强而已。车主要结合自己车的情况来选择,积碳不多的,就定期用养护型;积碳较多,就用清洁型。
燃油宝的除积碳效果如何,重点还是看“成分”。燃油宝中清除积碳的主要成分主要是聚乙丁烯胺(PIBA)、聚醚胺(PEA),还有一种是聚胺(PBA),但效果不如前两者,已被淘汰。
燃油宝的工作原理简单来说,就是用具有清洁分散作用的“胺”来阻止并清洗发动机气缸内的积碳。PIBA和PEA起清洁作用的都是他们中的“胺”,但二者的能力各有侧重:PIBA主攻进气系统,因为PIBA在低温区(进气歧管内100-200℃)有良好的清洁积碳能力,但是在高温区(气缸内200℃+)反而形成燃烧室沉积物(CCD)。
PEA则是反过来,主攻燃烧系统,进气系统较弱。不过,二者对喷油嘴都有作用。换句话说,PIBA适合传统的电喷发动机,PEA更适合直喷发动机,这是由于两种发动机喷油嘴的位置不同而造成的。
普通自然吸气电喷发动机的喷油嘴是在进气歧管中进行喷射,喷油嘴的角度刚好对着气门,在喷油时汽油可以一定程度清洗气门上的积碳,所以很少看到自吸发动机有气门积碳的现象。
而直喷发动机的油嘴是在缸内直接喷射,气门背面不会喷到汽油,无法被清洗到,时间长了气门会因为积碳过多影响到气门关闭时的密封性,导致各种问题。但也有直喷的厂家通过对进气道进行优化,从而减少气门积碳。
汽油、车型、路况、驾驶习惯甚至机油的不同,都会产生不同的积碳情况,每台车都有不同的积碳程度,而燃油宝能做的更多是减少积碳的形成,或者清洗少量的积碳。如果您的车况已经很糟,就必须“动手术”清洁了。
最后小编要提醒大家,如今市面上此类的产品可以说是五花八门,大大小小品牌都数不清了。而各位车主需要注意尽量别贪小便宜,老话说的便宜没好货还是有道理的,假的燃油宝不仅对清理积碳没有任何效果,反而会对爱车造成损伤
原创文章,作者:cesifu,如若转载,请注明出处:http://www.cesifu.com/article/50680.html
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