本SAE标准描述了满足美国石油学会（API）性能类别CF和CF-2、CI-4、补充CI-4 PLUS和SAE J300的物理、化学和性能要求的润滑油。这些机油适用于装有压燃式（柴油）发动机的轮式车辆的润滑。本文件取代军方的商业物品说明（CID）A-A-52306。

This SAE Standard describes lubricating oils meeting the physical, chemical and performance requirements of American Petroleum Institute (API) performance categories CF and CF-2, CI-4, supplement CI-4 PLUS, and SAE J300. These oils are suitable for the lubrication of wheeled vehicles with compression-ignition (diesel) engines. This document supersedes the military's Commercial Item Description (CID) A-A-52306.