Q: I have a 2009 VW with gasoline direct inject and a 2.0-liter turbo engine. It recently needed the intake valves cleaned (a very costly job) after just 54,000 miles. I understand many manufacturers ...

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.

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 ...

Gasoline direct injection, or GDI, is one of the most crucial bits of technology in the modern internal combustion engine. In engines equipped with GDI, highly pressurized gasoline is sprayed directly ...

Direct injection offers numerous benefits over port fuel delivery but could it be a bigger headache than it’s worth? The automotive industry has gradually switched to direct injection over the past ...

It has been touted as the automotive holy grail, the ultimate marriage of better performance and greater fuel economy. It's the direct-injection (DI) engine, the latest technology designed to squeeze ...