The EPA said it will end credits for the start/stop feature, which shuts off gas engines when cars are idle to save fuel.

We contacted automakers for their take on this hot-button issue (no pun intended) and got some surprising responses.

The Trump EPA is stepping up once again —this time to save Americans from the inconvenience of buying less fuel. In response to feedback from “countless” Americans, EPA administrator Lee Zeldin said ...

GM faces a choice on automatic stop-start after EPA rule changes. Should the automaker kill the feature or give drivers ...

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

Many drivers wonder if they should turn off their engines while waiting at red lights to save fuel. Research shows that ...

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 ...

The EPA, under the Trump administration, has eliminated the credit for the "almost universally hated" auto start-stop feature.

As part of its broader rollback of U.S. fuel economy rules, the Trump administration says it is eliminating a credit for automakers that got breaks on the fuel economy compliance if they installed ...

In a dramatic shift in federal environmental policy, the U.S. Environmental Protection Agency (EPA) under Administrator Lee ...

The leader of the Environmental Protection Agency proposed rolling back the automatic start-stop feature in cars. The start-stop technology was implemented in more cars following federal regulations ...