Automatic engine stop‑start was sold as a painless way to cut emissions and fuel bills, a tiny software trick that would shut the engine off at red lights and fire it back up when the driver lifted ...

What just happened? The Environmental Protection Agency is stripping automakers of a key compliance tool: emissions credits for automatic start-stop systems, the software-driven technology that shuts ...

Start-stop technology shuts the engine off at traffic lights and restarts it the instant you lift the brake. It saves 3 to 10 ...

Earlier this month, the EPA ended the “off‑cycle” emissions credit for automatic engine start‑stop systems, thereby removing the OEM incentive to install them on mass-market vehicles. As a result, ...

There's no question whether auto start-stop technology brings about tangible fuel economy benefits. A study by the Society of Automotive Engineers (SAE) found that drivers could potentially see a 7-26 ...