Diesel engines are known for their reliability, but that's only if proper routine maintenance is provided to the drivetrain ...

Questar analyzed a large mixed-class fleet and discovered it was wasting as much as $30 in fuel per vehicle, per day, because of mechanically degraded aftertreatment systems.

My old chemistry professor used to say that, at the end of the day, it’s oxidation that kills you. In short, our body gives ...

Ford’s Godzilla 7.3-liter V8 is a potent performance engine-swap option. Brian Wolfe fortified one for boost, and it belted ...