BS ISO 6743-15:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols used
5 Detailed classification
Annex A (informative) - Background and supplemental
        information about the classification of two-stroke
        cycle gasoline engine oils
Annex B (informative) - Background and supplemental
        information about the classification of four-stroke
        cycle gasoline engine oils
Bibliography

Provides the detailed classification, in tabular form, of engine lubricating oils for use in the following internal combustion engines: a) two-stroke cycle, spark-ignition gasoline engines that employ a crankcase scavenging system and are used in transportation, leisure and utility applications, such as motorcycles, snowmobiles, chainsaws (hereinafter referred to as two-stroke engine oils); b) four-stroke cycle, spark-ignition gasoline engines that employ a common sump containing the lubricant for both the engine and the drive train/starter/transmission of motorcycles, motor scooters, all-terrain vehicles (ATVs) and related equipment (hereinafter referred to as four-stroke engine oils).

This part of ISO6743 establishes the detailed classification, in tabular form, of engine lubricating oils for use in the following internal combustion engines: two-stroke cycle, spark-ignition gasoline engines that employ a crankcase scavenging system and are used in transportation, leisure and utility applications, such as motorcycles, snowmobiles, chainsaws (hereinafter referred to as two-stroke engine oils); four-stroke cycle, spark-ignition gasoline engines that employ a common sump containing the lubricant for both the engine and the drive train/starter/transmission of motorcycles, motor scooters, all-terrain vehicles (ATVs) and related equipment (hereinafter referred to as four-stroke engine oils). Outboard motor and marine engine applications are described in AnnexA. It is expected that this part of ISO6743 be read in conjunction with ISO6743-99[1].