This standard specifies the detailed classification of lubricating oils (gasoline engine oils and diesel engine oils) for automobiles and other stationary internal combustion engines. Diesel engine oil for railway diesel locomotives and marine diesel engine oil are not included. For the classification of two-stroke gasoline engine oil, see Appendix B (reference).
GB/T 7631.3-1995 history
2012GB/T 28772-2012 Classification of internal combustion engine oils
1995GB/T 7631.3-1995 Classification of internal combustion engine oils
GB/T 7631.3-1995 Classification of internal combustion engine oils was changed to GB/T 28772-2012 Classification of internal combustion engine oils.