? for 2：建议读者不要被误导。发动机制动一般只建议在两种情形下使用：1.下长坡陡坡，

来源: 于 2013-11-24 10:06:15 [旧帖] [给我悄悄话] 本文已被阅读：次

It was dangerous to apply the no. 2 technique. It can cause sudden slow down which leads to spin. It happened to my friends and I was happened to sit inside that vehicle!!!