Viscosity is only one aspect of a heavy duty diesel engine oil. There is a complex mixture of various performance additives, coupled with select lubricant stocks that make up the engine oil.

Developers are creating ways to improve diesel emissions and fuel economy while also meeting alt-fuel equipment needs.

More frequent oil changes may be required if your engine is working in a dusty or other unfavorable environment. "The demands placed on diesel engine lubricating oil are more severe than that of ...

Newer engines may fall under CES 20086 ... Oils that fall short may lead to poor lubrication and increased wear. Oil filters are another essential piece of the system. Cummins specifies full ...

This year, the Mobil Delvac™ brand celebrates its 100 anniversary, marking a century of innovation in diesel engine lubrication. The Mobil Delvac™ brand is globally recognized for ...