Not every all is suitable for every engine, and Cummins has some demanding specifications for the oil you put into its diesel ...

Viscosity is only one aspect of a heavy duty diesel engine oil. There is a complex mixture ... Engine builders have included SAE 10W-30 in lube recommendations since API CJ-4 was introduced ...

He's not wrong. Using diesel oil isn't a bad idea in older engines, it doesn't really hurt anything. In fact, in some cases it's actually beneficial. We've discussed in other posts how older ...

Besides using different fuels, what separates diesel engines from conventional engines is the types of oil both require to function properly and prevent damage. Since diesel engines are larger on ...

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

Much like the fuel you fill into the tank of a diesel or gas car, the engine oil you use to lubricate the motor is also subtly different. Each oil is engineered to optimize the performance of a ...