Some vehicles come with an auto start-stop feature that shuts off the engine when drivers brake. Is this feature worth leaving on or is it just nuisance?

Start-stop technology shuts the engine off at traffic lights and restarts it the instant you lift the brake. It saves 3 to 10 percent on fuel and is fitted to over 70 percent of new vehicles sold in ...

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, ...