But does this tech actually do anything? Obviously, an idling engine uses fuel, while an engine that’s off does not. But restarting that engine does use fuel. So which one has more of an impact? Well ...

Start/stop systems are among the simplest ideas in automotive history—turn off the engine when you don’t need it, save fuel, and start again when you do. Passenger cars embraced this decades ago, but ...

Start-stop technology, the controversial system that shuts down a vehicle’s engine at idle and restarts it when the driver releases the brake, may soon disappear. New law removes penalties for ...

The E.P.A. under Trump is moving to eliminate credits to carmakers for the fuel-saving start-stop function. By Ben Blatt Would you be willing to pay more for gas if your car could be a little less ...