How does cylinder deactivation work? When not needed, the system shuts down fuel supply to the cylinders not being used and closes the valves. There are two ways to accomplish this: 1) rocker arm ...

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

When installing a performance cam, many owners lose the engine’s cylinder deactivation feature. Here’s why you may want to keep it active. Manufacturers of modern V-8 engines have realized that we don ...

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 ...

If there's one bit of car tech that sounds like a contradiction, it's cylinder deactivation. (And no, we're not suggesting filling up some of the cylinders with super glue — that would lead to a ...