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 ...

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 ...

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

September 9, 2008 The imperatives of better fuel economy and reduced emissions are breeding some fascinating developments of the good ol’ Internal Combustion Engine (ICE). One of the most logical ...

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.

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 ...

However, not all innovations are equal, and nor do they follow a constant upward trend. Instead, their evolution takes the form of an S-shaped curve that reflects their typical lifecycle from early ...

High-pressure common rail fuel (HPCR) systems are standard on nearly every diesel engine today, from heavy equipment to over-the-road trucks, light-duty trucks, large generators and more. HPCR fuel ...

Over time and miles, your car might start to slow down. It might not accelerate as quickly as it once did; the engine may not run as smoothly as you remember, or the fuel economy may dip—but ...