Every diesel-head knows about Cummins engines — specifically, the six-cylinder Cummins 5.9-liter and 6.7-liter engines. But given how popular these engines are, we won't blame you if you didn't know ...

Today, a major part of Cummins' reputation as a diesel engine manufacturer lies in the torquey inline-six turbodiesels that have faithfully powered the Ram heavy-duty pickup trucks since 1989. Some of ...

Both Cummins and Ford offer 6.7-liter diesel engines. They share a few similarities, but those don't go much further than their displacements.

Add Yahoo as a preferred source to see more of our stories on Google. If you ever want to start an argument between diesel enthusiasts, just bring up the topic of the 6.7 Cummins and PowerStroke ...