Some cars use port injection, while others use direct injection. Some even use both. What's the advantage of that? Jason Fenske of Engineering Explained breaks it down in the accompanying video.

The answer is bringing fuel to the fire by two separate paths, and a few makers already are fitting their engines with both port and direct injection. Toyota introduced this technology ...

Lots of new car engines these days are built with both port and direct fuel injection. On the surface, that might not make much sense. Why would a carmaker use two different types of injection ...

Toyota has offered its D-4S fuel injection system for a number of years with certain models of its 3.5-liter V-6 engine. The D-4S uses a combination of both direct and port injection to blend the ...

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 ...

In a port injection engine, the fuel would clean the fuel injectors and parts of the engine in which it was sprayed. However, in a direct injection system, the fuel addition is so precise that it ...

As we entered into 2014, the industry was abuzz with the acronym “GDI,” otherwise known as Gasoline Direct Injection. The “gasoline” distinction is significant because direct injection has ...

See All 22 Photos 03.The twin-turbo V-6 developed by Ilmor for IndyCar also uses direct injection, but requires port fuel injection to supplement in order to meet the fuel mass required with E85.

The power, fuel efficiency, and longevity of an engine will heavily depend on the fuel that’s being delivered. Furthermore, an engine’s efficiency is dependent on a precisely calculated air-to ...

While port injection is still the most common form of electronic fuel injection, gasoline direct injection is quickly starting to replace it since it provides better fuel atomization, decreased ...

Traditional fuel-injected engines that don't use direct injection usually use throttle body injection or port injection; those systems spray gasoline into the intake port where it's mixed with air ...