The basic difference between direct injection (DI) and the port-fuel injection (PFI) systems we've become familiar with since the mid-1980s is that PFI sprays fuel into the intake manifold (behind ...

Discover how Ford's EcoBoost engines overcame early skepticism to become a reliable, efficient, and high-performing choice ...

Automobiles, as any mechanic will tell you, are complicated beasts. Enthusiasts, of course, will have a solid grasp of the jargon. They'll know at a glance what the unusual shape on that road sign ...

As emissions restrictions tighten and more automakers struggle to meet increasing CAFE standards, small-displacement turbocharged engines are becoming more and more common. A small, efficient, ...

There was a time when small engines were synonymous with modest performance and fuel economy. They were built to deliver efficiency, not excitement. But in the past few years, automakers have ...