drumstick SG close all window...dun on a/c... cruise @ 80 -90. open front vent. save petrol and at the same time reduce force. juz that a bit warm... but at night... no problem with it. But if open vent, suay suay got 1 old old lorry let u smell smoke.. lolz..
Kuali Baba SG Mythbusters took 2 identical cars to a race track and brimmed them with fuel for an endurance race. One car had the windows wound down (with the air-con off) and it lasted a few laps longer than the one which was sealed but had the air-con running.
sgheartland SG Wow, if this is true, we can save fuel two ways. Wind down the window and last longer distance and you switch off the aircon which also save the fuel. But really so good or not, i don't know.
