Westport Innovations Inc. on Tuesday announced a second-generation high-pressure direct-injection natural gas system usable on original equipment manufacturers’ diesels. It replaces the dual-fuel ...

The internal combustion gasoline engine — we have a love/hate relationship with it. It creates a lot of pollution. It is incredibly inefficient. It spews carbon into the atmosphere. It makes us ...

There are numerous differences between diesel and gas engines, including the number of fuel filters each uses. Here's why ...

Quantum Fuel Systems recently delivered several pre-production units of an advanced compressed natural gas fuel storage and delivery system to ZHRO Solutions, as part of a joint effort to develop a ...

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 ...

LOS ANGELES -- Mazda plans to add gasoline direct-injection engine technology to the Mazda3 when the compact sedan receives a freshening in the second half of 2011, Automotive News has learned. The ...

Transonic Combustion, a startup based in Camarillo, CA, has developed a fuel-injection system it says can improve the efficiency of gasoline engines by more than 50 percent. A test vehicle equipped ...

If you think direct-injection diesel engines made their debut in the 1980's, think again. The first diesel without extra ...

GM Powertrain announced today it will deliver a 3.6-liter V-6 gasoline engine with direct injection and variable valve timing (VVT) technologies in the 2008 model year. A vehicle application will be ...

Automotive engineers are very good at incremental improvements to existing technologies, and that skill will be much tested in meeting increasingly stiff fuel-economy rules between now and 2025. For ...