Ignition coils last far longer than spark plugs and only need replacement when symptoms appear. Here’s how to tell if coils ...

Mazda has revealed that it will introduce a new gas engine that uses compression ignition as part of its long-term tech development dubbed "Sustainable Zoom-Zoom 2030." Called Skyactiv-X, the new mill ...

Car manufacturers are delving deep into their boxes of tricks to make internal combustion engines more efficient. Infiniti unveiled a variable compression ratio engine last year, and hybrid technology ...

Homogeneous charge compression ignition (HCCI) engines combine a diesel's torque and fuel efficiency with a gas engine's cleaner emissions. The HCCI technique has been a goal of automakers since the ...

A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...

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 ...

General Motors will display an advanced technology compression ignition engine at its Milford Proving Grounds in Michigan today. The engine is a peek at new internal combustion engine developments at ...

In the interest of making sure we all know they've got a mapped strategy for powertrain technology, GM is taking its message on the road. Recently, we got the chance to talk to a few of GM's experts ...