现如今油价飞涨，自驾开车甚至很多时候都不及乘坐公共交通系统来得实惠便利，而且城市路况复杂，鱼龙混杂，变道穿插比比皆是，在这样的环境中要如何保持良好驾车习惯以降低油耗呢？来看看发动机多少转最省油，学会驾驶控制汽车最佳转速。(Now oil prices soaring, the self driving car and even many times not to take public transportation system more affordable and convenient, City Road complex, change lanes interspersed with dragons and fishes jumbled together, how to keep good to meet the eye everywhere, driving habits to reduce fuel consumption in this environment? Let's see how much fuel the engine gets, and learn how to drive and control the best speed of the car.)