At present, the vast majority of cars are fuel consumption. With the increase of car ownership, automobile fuel consumption to total consumption of petroleum products is increasing. How to reduce the consumption of petroleum products and to save oil resources have become a focus of world attention. Furthermore, from automobile use units and personal perspective, reducing fuel consumption is also crucial. Therefore, it is necessary to analyze the factors that affect automobile fuel economy and improve the measures of automobile's fuel economy.%目前，绝大多数汽车都是消耗燃油的，随着汽车保有量的增加，汽车消耗的燃油占石油产品消耗量越来越大，如何减少对石油产品的消耗，节约石油资源已成为举世瞩目的问题，而且从汽车使用的单位和个人角度来讲，降低燃油的消耗也是至关重要的，因此，我们有必要分析一下影响汽车燃油经济性的因素及提高汽车的燃油经济性的措施。
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