[問題] 機油選擇5W20 5W30
新車快要接近1萬KM 想自備機油回原廠保養
車型是focus 1.5T 上次1000km回廠 原廠推薦了5W20機油(目前用油)
對於機油的認識不深 剛剛小小爬文後
發現W後面的數字是以100℃時的黏度來作測示、
數字愈大代表黏度愈高
所以想問問台灣的氣候環境是該選擇5W20還是5W30呢?
或者就保護引擎的角度來看差異不大?
(5W20油品規範原廠定義等級更高?)
用車大概高速平地8:2 高速可能會熱血一下
還請各位車神幫小弟解惑
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