While significant sooty black deposits—and even, occasionally, visible puffs coming from the tailpipe—used to be a sign your gasoline car needed a tune-up, they’re a normal fact of life with many ...

The other day I dropped my car off at a European specialist shop, and while I was there, a technician was working in the engine bay of a Mk7 Golf R, cleaning out carbon deposits off the intake valves.

Most new cars are turbocharged, direct injected, or both, which means that these fuel-saving and performance-enhancing technologies will soon become even more common in the used car marketplace. Both ...

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 ...

The power, fuel efficiency, and longevity of an engine will heavily depend on the fuel that’s being delivered. Furthermore, ...

The General's most potent V-6 ever owes much of its newfound power and efficiency to direct fuel injection. As with all DI gasoline engines, much of the improvement is due to the fact that evaporating ...

It's an amazing time when there's new technology in the industry as it forces a new rivalry in speed parts, and direct-injection is firmly in the high-performance arena whether anyone likes it or not.

Carburetors vs Electronic Fuel Injection - What's Best For Your Engine? What are the differences between carburetors, port ...

As some enthusiasts resist change, others run right at it head-on. A brave new generation of enthusiasts was ushered in 32 years ago with the introduction of EFI to the Mustang platform. The next ...