本信息报告是SAE推荐实施规程J1376《卡车和客车燃油经济性测量试验（工程型）》的配套文件。它提供背景信息和解释，以便更好地理解测量程序及其使用。它还提供了SAE/DOT项目开发的参考和数据，以支持为试验程序中的各种项目选择的特定限制或参数。本文件中使用的格式与推荐做法类似，因此可以在相同的标题下找到相应的主题。

This information report is a companion document to SAE Recommended Practice J1376, Fuel Economy Measurement Test (Engineering Type) for Trucks and Buses. It provides background information and explanations to better understand the measurement procedure and its use. It also provides references and data which were developed by the SAE/DOT Program in support of the particular limitations or parameters selected for the various items in the test procedure. The format used in this document is similar to the recommended practice so that corresponding topics can be found under the same headings.