The upsides of cylinder deactivation systems are obvious: Estimates from the U.S. Department of Energy say they can improve ...

Ford has developed a comprehensive range of EcoBoost engines, with everything from tiny 1.0-liter inline-three engines through to supercar-powering twin-turbocharged V6 units. While EcoBoost engines ...

General Motors has filed a new patent that offers a look at how the company may be rethinking cylinder deactivation for its next generation of pushrod engines. The application, published by the U.S.

Cummins reports that its Jacobs cyinder deactivation system boosts heavy truck fuel economy by almost 3% in on-highway testing. Cummins Valvetrain Technologies reports positive results from further on ...