What do I need to know about the API CK-4 Diesel engine oil specification?

The API CK-4 engine oil specification was released in 2016 as the latest generation of C-class diesel engine oil specs. In this video we describe the major evolutions from CH-4 to CJ-4, and the major differences between the old CJ-4 and new CK-4 engine oil specs. Here at Lubrication Expert we take a first-principles approach to lubricants and greases; helping industry understand lubrication technology and pushing the limits of what is possible. Catch us on Twitter:   / lubricationexp   Catch us on LinkedIn:   / lubrication-expert