本程序是对SAE J1082中规定的城市行驶循环的修改，并在合适的道路或测试跑道上运行。该程序产生冷启动/预热燃油经济性值，指示测试环境条件下的耗电量水平。在参考限制范围内，该程序可用于确定车辆之间或车辆更换之间的燃油经济性差异。本SAE推荐实施规程提供了在冷启动和预热操作期间测量轻型车辆燃油经济性的统一试验程序（主要设计用于人员或财产运输，额定值为4500 kg GVW（10 000 lb）或以下）的机动车在合适的道路上行驶。

This procedure is a modification of the urban driving cycles noted in SAE J1082 and which is run on a suitable road or test track. The procedure yields cold start/warm-up fuel economy values indicative of consumer level at the ambient condition of the test. Within referenced limitations, the procedure can be utilized to determine the fuel economy differential among vehicles or between vehicle changes.This SAE recommended practice provides uniform test procedure for measuring the fuel economy of light duty vehicles during cold start and warm- up operation (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg GVW (10 000 lb) or less) on suitable roads.