日产汽车公司开发的1．5L4缸发动机与其原准机相比．功率减小3．7kw，扭矩稍有下降。但装在CX轿车上，按照日本10／15工况循环进行试验，燃油经济性指标达到20.5km／L，比其原准机提高1km／L在日本的日常使用中，70％的时间发动机是工作在贫燃区（空燃比为22：1）以内。日产汽 Nissan Motor Company developed 1.5L4 cylinder engine compared with the original reference machine. Power reduced 3.7kw, torque slightly decreased. But installed in the CX sedan, according to the Japanese 10/15 cycle test, the fuel economy index reached 20.5km / L, compared with the original reference machine to improve 1km / L in Japan’s daily use, 70% of the time the engine is Work in the lean zone (air-fuel ratio of 22: 1) or less. Nissan steam