诀窍1: control your speed in the range of 50 to 55 mile per hr
诀窍2: keep enough tire pressure about 35lb,and check tire balance
诀窍3: close windows while you drive
诀窍4: follow a truck ...
大部分技巧在上海市区很难用上,我现在平均时速23,基本上不去了,路况不好,比天天开市区的人开心多了,听说柴油车要省油多而且力量大。