Boyer Kia

The Kia GDI Engine

Powerful and powerfully efficient.

It's the Gasoline Direct Injection engine that helps a Kia deliver outstanding performance-in both power and fuel use.

GDI injects highly-pressurized fuel directly into the cylinders during the engine's combustion cycle. The result is an increased quality of combustion and efficiency. By making smarter use of fuel, GDI also reduces emissions.

What the driver experiences is still the most critical element of any powertrain technology. And with GDI, the driver enjoys smooth, powerful acceleration and a longer time between refueling.

Driven to deliver thrills.

We designed Kia vehicles to be fun to drive-and that starts with the engine. From Gasoline Direct Injection (GDI) engines that deliver more power and lower emissions, to fuel-saving hybrid technology, to turbocharged engines that offer impressive low-end torque, step into a Kia and you're in for a surprise.

Performs in the passing lane and the fast lane.


In the short space of five years, Kia is making a name for itself in the world of motorsports. In 2011-after only one year of competition-Kia Racing landed its first-ever championships during the Continental Tire Sports Car Challenge season. In 2015 the reigning Pirelli World Challenge (PWC) Touring Car A (TCA) Driver Champion, Jason Wolfe, piloting the No. 36 Richard Wolfe Trucking Kinetic Motorsports Kia Forte Koup, scored two race wins and a podium finish in the final three rounds of the season at Mazda raceway Laguna Seca (MRLS) in Monterey, California, to successfully defend his title.

The production vehicle used? An Optima. While it's easy to think of the Optima as the family sedan that's perfect for zipping around town, the race-prepped version of the Optima unleashes the full potential of the vehicle's aerodynamic style and driving dynamics.

But it's the state of the art technology under the hood that really helps the Optima deliver: the Gasoline Direct Injection (GDI) turbocharged engine used in the Optima SXs makes it perfect for zipping around racetracks and lapping competitors.

In fact, as of 2014, Kia was one of only two race teams in the U.S. to use a GDI Turbo engine. With continued design innovations and more championship wins every year, Kia is clearly on the right path.

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