General Motors has filed a new patent that offers a look at how the company may be rethinking cylinder deactivation for its ...

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

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 ...

A recently filed patent details a new GM cylinder deactivation system that appears to be heading to the next-gen V8 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 ...