while driving on highway, it is more fuel efficient to

来源: xxhhwxc 于 2009-06-04 13:45:54 [] [旧帖] [给我悄悄话] 阅读数 : (41 bytes)
回答: 加油秘诀 由 carfixer 于 2009-06-04 07:10:22

turn on AC than if you open the windows.

请您先登陆，再发跟帖！