Lubricant Specifications

Engine Oil Specification Development Committees


People from many organizations must come together to advance lubricant specifications, ensuring that engines both old and new continue to be protected.

The table below, contributed by Steve Haffner of SGH Consulting, outlines some of the committees that are instrumental in developing and implementing new specifications.

Specification Development Committees
ASTM members include, OEMs, marketers, test labs and additive companies. API members include lubricant marketers, base stock producers and additive companies. Source: SGH Consulting
OrganizationFull NameRepresentsFunction
ILSACInternational Lubricant Standardization and Advisory CommitteeLight-duty original equipment manufacturersInformal group of OEMs who support and help develop engine oil specifications for gasoline engines. OEMs act as test sponsors for new and current tests, making them responsible for test development relating to new specifications.
PCEOCPPassenger Car Engine Oil Classification PanelASTMReviews status and concerns around test development and maintenance; includes recommending ballots to Subcommittee B on various items relating to ASTM tests; responsible for keeping ASTM D4485 updated
AOAPAutomotive Oil Advisory PanelILSAC, API, ACCDevelops and recommends ILSAC GF-x specs; oversees timing and test development critical to new specifications; defines tests and limits for new specifications
CLOGCategory Life Oversight GroupAPIMonitors test life and supports development of new and replacement tests to maintain current and older API categories
SPSurveillance PanelASTMMonitors engine tests and supports new developments
Task ForceTask ForceVariousAs needed to investigate problems or develop base oil interchange and viscosity grade read-across guidelines
EMAEngine Manufacturers AssociationDiesel engine manufacturersFormal OEM organization that defines and finalizes draft diesel engine oil specifications based on feedback from HDEOCP
HDEOCPHeavy-duty Engine Oil Classification PanelASTMReviews status and concerns around test development and maintenance; reports to Subcommittee B
DEOAPDiesel Engine Oil Advisory PanelEMA, API, ACCSupports the development of new heavy-duty engine oil categories; forum discusses topics pertaining to new and current heavy-duty diesel oil categories; reports and makes recommendations to the Lubricants Standards Group
NCETNew Category Evaluation TeamAPIRecommends to API Lubricants Group regarding the need, language, timing and funding mechanism for a new category; not a standing team
NCDTNew Category Development TeamAPI, EMADevelops the new heavy-duty diesel engine oil category; not a standing team
LG or LSGLubricants Group (Lubricants Standards Group)APIOfficially establishes and finalizes new API categories and associated engine oil specifications for both diesel and light-duty passenger engine oils; makes decisions on items pertaining to existing categories; AOAP, DEOAP, BOI/VGRA and CLOG are sub-groups that report to LG
LSDRGLubricants Standards Development Review GroupAPICross-functional group that recommends process improvements for specification development; disbanded