本SAE标准描述了符合美国石油学会（API）SM类别和国际润滑剂标准化和批准委员会（ILSAC）GF-4标准的物理、化学和性能要求的润滑油。这些油适用于火花点火发动机（汽油发动机）的润滑。本文件取代军方的商业物品说明（CID）A-A-52039。

This SAE Standard describes lubricating oils meeting the physical, chemical, and performance requirements of the American Petroluem Institute (API) SM category and the International Lubricant Standardization and Approval Committee (ILSAC) GF-4 standard. These oils are suitable for the lubrication of spark-ignition engines (gasoline engines). This document supersedes the military's Commercial Item Description (CID) A-A-52039.