This standard specifies single-grade fourth-generation diesel engine oil for railway internal combustion locomotives (referred to as single-grade fourth-generation oil) and 20W-40 multi-grade fourth-generation diesel engine oil (referred to as multi-grade fourth-generation diesel engine oil) composed of deeply refined paraffin-based base oil and various additives. (oil substitute) technical requirements, sampling, packaging, marking, storage and transportation. The products specified in this standard are suitable for the lubrication of imported ND4, ND5 and domestically produced Dongfeng 4c, Dongfeng 4D and other highly reinforced internal combustion locomotive diesel engines.
TB/T 2956-1999 history
2009TB/T 2956-2009 Diesel engine oils for railway diesel locomotives
1999TB/T 2956-1999 Single-grade and multi-grade fourth-generation diesel engine oils for railway diesel locomotives