缸內直噴引擎會有的三大問題(含解決方案) - 開車
By Hedwig
at 2022-02-20T10:03
at 2022-02-20T10:03
Table of Contents
https://www.youtube.com/watch?v=uVd-ZS5bnyY
剛剛在YOUTUBE上面看到Engineering Explained的Jason發的新影片,
直接講結論給大家參考:
缸內直噴(尤其低排氣量+渦輪增壓)的引擎會遇到的三個問題:
1. 正時鏈條磨損。
2. 汽油稀釋機油。
3. LSPI(低速預燃)。
以下是解決方案,幾乎跟開車方式、習慣還有最重要的機油有關:
1. 改用API SP / ILSAC GF-6等級之機油降低煙灰的產生來磨損正時鏈條。
2. 經常或定期長距離旅途(引擎發動超過30分鐘以上),避免經常短途行程
讓機油無法達到正常溫度使冷啟動時沿著汽缸壁多噴而流入機油的汽油無法透過
PCV揮發回引擎燃燒掉。
3. 避免讓引擎處於低轉速高負荷(例如用較高檔位重踩或全油門硬拖爬上坡)、
改用API SP / ILSAC GF-6等級的機油(去除容易引發LSPI的以鈣為成份的清潔劑,
改用以鎂為成份的清潔劑)。
小弟剛好開2019年的SWIFT SPORT 6AT ZC33S版本,排氣量1373CC+渦輪增壓的引擎
每天從松山到搬去桃園的公司通勤,現在機油改用COSTCO賣的KIRKLAND的5W30的機油
剛好也有符合API SP / ILSAC GF-6的等級,應該是不太會遇到這些問題。
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