If car needs 1 qt oil every 500 miles, it probably

来源: 于 2010-08-05 11:18:59 [旧帖] [给我悄悄话] 本文已被阅读：次

does not need oil change any more because the motor oil is always fresh. You can think this way that the oil is replaced by the added oil every 2,500 miles if the engine carries 5 qt of oil in full.