LOCOMOTIVE 5W-30 CK-4 is a top tier heavy-duty engine oil that helps extend engine life in the most severe on and off-highway applications while delivering outstanding performance in modern high output low-emission engines fitted with EGR, DPF, DOC and SCR – Adblue NOx reduction systems. The exceptional low temperature fluidity and pumpability in combination with the sophisticated additive system, ensures maximum engine wear performance and supports longer engine life. It is designed for on-road vehicles meeting Euro VI and o- road vehicles meeting EU stage IIIA, IIIB, IV and US Tier 4 emission standards.