Manufacturers will no longer get a credit toward vehicle emissions standards by installing engines that automatically stop at ...

As part of its broader rollback of U.S. fuel economy rules, the Trump administration says it is eliminating a credit for ...

For years, many drivers have complained about engines that cut out at every red light and then start again a moment later.

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 ...

Automakers produce vehicles with standard driver-assistance and safety features that can sometimes feel unnecessary. The auto start-stop feature does benefit a specific type of driver in certain ...

For more than a decade, automatic engine start/stop systems were sold as painless climate tech, a clever way to trim fuel use by cutting the engine at every red light. Now the feature is rapidly ...