回复：买了新车顺便研究了一下磁铁滤油器，结果失望。

来源: 于 2009-04-14 16:00:47 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

It might help you at traffic light. With a magnet at the bottom of a car, it can help triggering traffic light sensor on the road. So, you may not have to wait too long for green light sometimes.