不討論A不A錢, 這話題早吵爛了, 連Wiki都有了: https://en.wikipedia.org/wiki/3,000_mile_myth "people should follow the advice given in their owner's manual rather than the advice of oil-change businesses." 意思就是說, 手冊說多少就是安全值了, 根本沒必要刻意縮短里程數換機油, 很多原廠手冊都建議到10,000miles(1萬6千公里) 才需要換了