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.

We were on a hard newsletter deadline last week when the news broke that the Trump administration had announced what it calls ...

Why Some Drivers Prefer Cars Without Stop/Start Technology. So, you’re looking for a new car in 2026 and you’ve noticed that a lot of them come with this ‘stop/start’ feat ...

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

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

Start-stop is a relatively small feature with a dense engineering stack behind it. Modern systems tie together the engine control unit, starter-alternator hardware, beefed-up 12-volt or ...

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 ...