毫無credit可言的“專家“還是人家專業分析發動機裏機油的公司的結論。
給你說說俺的故事。
2017時俺的車已經一年多沒換油了,離上次換開了3375邁,後來還是換了,換的時候決定把換出來的油送去一家有名聲的lab去分析一下,結論如下,要點是:The oil won't go bad just from being in the engine, nor will it cause any harm so long
as it isn't full of contamination like moisture or excess fuel.