Engine Oil Performance and Engine Service Classification (Other than "Energy Conserving")
This SAE Standard outlines the engine oil performance categories and classifications developed through the efforts of the Alliance of Automobile Manufacturers (Alliance), American Petroleum Institute (API), the American Society for Testing and Materials (ASTM), the Engine Manufacturers Association (EMA), International Lubricant Specification Advisory Committee (ILSAC), and SAE. The verbal descriptions by API and ASTM, along with prescribed test methods and limits are shown for active categories in Table 1 and obsolete categories in Table A1. Appendix A is a historical documentation of the obsolete categories. For purposes of this document, active categories are defined as those (a) for which the required test equipment and test support materials, including reference engine oils and reference fuels, are readily available, (b) for which ASTM or the test developer monitors precision for all tests, and (c) which are currently available for licensing by API EOLCS. The current processes for initiating new classifications were developed through the cooperative efforts of the Alliance, API, ASTM, EMA, ILSAC, and SAE. New ILSAC classifications are developed using the procedure defined in API 1509 Annex C. New API “C” categories are added using the procedure defined in API 1509 Annex D. New API “S” categories are added by the API Lubricants Group.
Rationale: SAE J183 is incorporated by reference by many legislatures, as well as in the National Conference on Weights and Measures Handbook 130. Four events have contributed to make the current version of J183 not current.
1. The commercial introduction of API SN PLUS as a performance classification
2. ILSAC GF-6A and GF-6B have been balloted for inclusion into API 1509
3. API SP and "SP with Resource Conserving" have been balloted for licensing in May 2020. (These Categories may be claimed ahead of the May 2020 date, if products are compliant.)
4. Some activities of the Category Life Oversight Group have allowed new tests to be used to support older Categories.
These 4 events lead to a need to edit J183 to keep it current.