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 ...

Improving fuel efficiency and reducing CO2 emissions as much as possible is one of the main tasks for the struggling American automaker General Motors who is currently facing a 60-day deadline to ...

How Gasoline Direct Injection causes Chain Wear, Fuel Dilution, and LSPI. One of the biggest changes to gasoline combustion ...

Better fuel economy and lower emissions from gasoline direct-injection engines are getting closer. Most European automakers are preparing GDI engines for introduction in the next few years, starting ...

Mazda has taken the wraps off a new ‘downsized’ engine displacing just 1.3-liters but developing upwards of 83 horsepower and 83 pound-feet of torque thanks to a couple of neat features. The tiny four ...

Despite being overhauled for the 2010 model year, not much attention has been paid to the Hyundai Tucson crossover in recent times. But when its overseas twin, the ix35, received modest updates at ...