由于汽車是由多個零件組合而成的，所以在行駛中出現(xiàn)的一些問題，修車師傅都會用專業(yè)名詞來形容。不過，對于身為外行人的我們，在聽到發(fā)動機低速早燃的時候，就會感到十分疑惑。發(fā)動機低速早燃是什么意思？低速早燃現(xiàn)象怎么解決？讓我們一起來看一下吧！
低速早燃的現(xiàn)象也就是指車輛的發(fā)動機轉(zhuǎn)速比較低，但是扭矩輸出比較高的時候，燃油和機油的混合物在火花塞正常工作點火之前就已經(jīng)發(fā)生了點火現(xiàn)象，一般都是在車輛低速但是高負荷運行的情況下出現(xiàn)，燃油和機油中的混合物在火花塞正常點火之前所發(fā)生的自燃現(xiàn)象。
在車輛發(fā)生該現(xiàn)象時，車輛發(fā)動機內(nèi)缸的壓力變大，這種情況下的破壞性比常規(guī)爆震的破壞性還要大很多，就會導致火花塞燒灼、氣門擊穿和活塞頂面斷裂以及其它的一些問題，反正就是對發(fā)動機會造成很嚴重的傷害。
這個現(xiàn)象出現(xiàn)的原因也就是汽車內(nèi)的零件在進行進氣沖程的時候，噴嘴將油霧噴到氣缸里面，其中一些燃油就會和機油的殘余薄膜產(chǎn)生一些反應，然后在燃油和殘留物混合之后，就會被液化，也就導致壓縮沖程的時候上升的活塞產(chǎn)生的一些物質(zhì)，隨著活塞一起上升，然后就會導致溫度上升也就會發(fā)生早燃。
因為這個問題還是比較嚴重的，可以到維修廠檢修一下，嘗試一下改善機油的性能，然后改變這種現(xiàn)象的發(fā)生。
解決低速早燃的方法就是使用高標準的潤滑油，由于發(fā)動機結(jié)構(gòu)不同，要想從根本上解決“低速早燃”問題并不是很容易。
不過，汽車廠商發(fā)現(xiàn)高標準潤滑油能有效緩解低速過早燃燒，通用率先提出第二代dexos1標準。本標準專門針對渦輪增壓器保護和低速早期燃燒，對潤滑油提出了更嚴格的要求。
目前對于這種現(xiàn)象是無法避免的，不過，我們可以通過給汽車改善機油性能，來抑制這種情況。
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