其實磨合期先用礦物油再換成全合成這是我在網路上聽來的 但是我覺得make sense 我聽到的是 對新引擎來說全合成機油清潔性太強(因為一定加了清潔用添加劑) 全新引擎需要一些沒有太多添加劑加入的傳統機油,才能夠properly磨合(仍舊要按時/里程更換)
(One thing to remember is to always use conventional engine oil with no additives (Slick 50, Prolong, etc.) after an engine rebuild. The new engine parts depend on the characteristics of conventional oil to properly break in. A certain amount of friction during break-in is required or the new components may fail to break-in.)