据有关资料对载重2～7吨的载重汽车道路试验结果表明,使用柴油机可比汽油机节省燃料30～45％。在石油供应日趋紧张的情况下,使用柴油机者日益增多,甚至小客车也在向柴油机发展。我国是以发展载重汽车为主的国家,我国的载重汽车又以解放牌为主。原解放牌汽车的汽油机结构陈旧,百公里油耗高达29升。自生产以来,虽经一系列改进,百公里油耗仍高达 According to relevant information on the road load test results of 2 to 7 tons of truck showed that the use of diesel engines can save fuel than gasoline 30 to 45%. In the increasingly tight oil supply situation, the use of diesel engines is increasing, and even small passenger cars are also being developed to diesel engines. China is the country that develops the heavy truck mainly, our country’s heavy truck is mainly by the liberation card again. Jiefangbei car gasoline engine old structure, fuel consumption per hundred kilometers up to 29 liters. Since its production, despite a series of improvements, fuel consumption is still as high as 100 kilometers