Continual breakdowns, ineffective repairs and financial losses from disrupted operations have pushed frustrated fleet owners to sue Caterpillar Inc., along with the truck and engine dealers who sold ...

Multiple lawsuits against Caterpillar for chronic failures of its 2007-2010 ACERT diesels go beyond heavy trucks, and include school buses and motor coaches as well as at least one marine engine, ...

The quest to control emissions brought the race for ever-higher torque and horsepower to a halt in 2002, with heavy-duty diesel engine manufacturers suspending sales of high-output engines. It was ...

Gear fast, run slow. It’s a universally accepted principle of linking engine with drivetrain to give you a balance of performance and fuel economy. But how about spec’ing to run 105 km/h at 1,325 rpm?

This 2006 Kenworth T600 is owned by Jason Graves out of Brazil, Ind. The truck came with a 550-horsepower Caterpillar ACERT C15, but Graves has modified it to a 6NZ-style C16 with 750-horsepower. It ...