机油颜色跟性状无关,更没有什么"脏"一说

来源: 满地找牙于 2012-05-26 19:46:40 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

发动机油颜色变黑,是因为脏了需要换吗?

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