ISO 13738:2011规定了采用曲轴箱扫气系统的二冲程循环火花点火式汽油发动机中使用的润滑油（以下简称“二冲程油”）的要求，这些发动机用于交通、休闲和公用事业应用，如摩托车、雪地摩托车和电锯。 ISO 13738:2011中规定的要求适用于ISO 6743-15中涵盖的二冲程油类别，即EGB、EGC和EGD，ISO 6743-15定义了内燃机用润滑油的分类。

ISO 13738:2011 specifies the requirements of lubricating oils (hereinafter referred to as "two-stroke oils") to be used in two-stroke-cycle spark-ignition gasoline engines which employ a crankcase scavenging system and are used in transportation, leisure and utility applications, such as motorcycles, snowmobiles and chainsaws. The requirements specified in ISO 13738:2011 are applicable to the categories of two-stroke oils, EGB, EGC and EGD, covered in ISO 6743-15, which defines the classification of lubricating oils for use in internal combustion engines.