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 ...

Testing of a sophisticated cylinder deactivation technology on a Cummins engine showed a 74% reduction in nitrogen oxides (NOx) emissions. Cylinder deactivation is viewed as one of the main strategies ...

The clock is ticking for trucking manufacturers to meet challenging new emissions requirements in 2024 and 2027. On those two horizons are reductions of NOx by up to 90 percent, CO2 by up to 25 to 30 ...

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.

Cummins Valvetrain Technologies reports positive results from further on-road testing of its Jacobs cylinder deactivation (CDA) technology. CDA for diesel engines is a new powertrain technology.

Account deactivation enables Facebook members to drop out of sight on the social network with just a few clicks. The deactivation process takes less than a minute, and the results are immediate.

A leading security expert has warned all WhatsApp users that their accounts could be deactivated by anyone sending an email, and there’s currently no way to stop it. If your smartphone is lost or ...

Automakers get about an 8% gain in fuel economy by shutting down half of the engine's cylinders. Here's how. The cylinders are turned off by keeping valves closed, keeping out air and fuel. In push ...