When comparing engine specs for nearly any combustion engine automobile, we see a number of variations available with differing outputs of horsepower and torque. We often have a choice of gasoline or ...

Add Yahoo as a preferred source to see more of our stories on Google. As you may know, an engine's compression ratio is directly linked to its combustion efficiency. All else being equal, ...

How engine design has evolved to boost fuel efficiency, and where it's going from here.

Cummins is expanding its Forever Rising Tour, a traveling exhibition designed to bring its latest heavy-duty engine platforms ...

Diesel engines have been around since the late 19th century, which was around the time Karl Benz built the world's first automobile. Diesel engines have higher compression ratios than gas engines and ...

A key enabler is the newly redesigned aftertreatment system, which uses trusted components in a smarter and more efficient ...

A computer generated power stroke of an internal combustion engine, following ignition - Pathompong Thongsan/Getty Images When comparing engine specs for nearly any combustion engine automobile, we ...