The Trump administration is demanding warranty and failure data from top manufacturers in an effort to end truck engine ...

The EPA is escalating its response to consumer complaints regarding DEF system failures, announcing a new investigation aimed ...

Toyota clearly got it right with this engine three decades ago, and it's still selling it virtually unchanged in new vehicles ...

Breaking news, the EPA is forcing engine makers to reveal the truth behind their DEF systems for repairs, warranty claims to ...

COLUMBUS, Indiana—To comply with 2027 emissions regulations, new powertrains must make performance compromises. Despite the added weight and backpressure of a larger aftertreatment system, Cummins' ...

The LML was the 6.6-liter V8 engine behind many Chevrolet Silverado and GMC Sierra trucks between 2011 and 2016, but what made it so special?

Internal combustion engines — including those that run on diesel fuel — rely on various systems, accessories, and electronics to keep the pistons moving and your wheels turning. Of those systems and ...

Inline-six engines are well-balanced, and they have a great history of being reliable. Four engines in particular are ...

Diesel engines lack the spark of gas engines, both literally and figuratively. They don't need a spark plug since they ignite the fuel using only compression, but also lack the 'je ne sais quoi' that ...

This cast-iron brute defies mileage limits, propelling trucks to unimaginable distances.