A North Carolina man was sentenced to one year and one day in prison, as well as ordered to pay millions in fines, for making and installing diesel engine defeat devices.

Porsche has been ordered to pay an $80 million settlement in the U.S. over cheating on emissions and fuel economy claims.

The problems that cause your car to fail its emissions test are repairable--some are DIY-able even--but they must be addressed if you want to keep your car street-legal.

A shocking new study concluded that EV tires are causing more pollution than gas-powered cars. How can that be?

In the push to reduce carbon emissions, a rule that starts in 2023 in California could ban 76,600 trucks from operating.

The new EPA emissions rules reverse the weaker regulations under the Trump administration. Improving cars' and light-duty trucks' fuel economy is the goal.

President Joe Biden's executive order will force the U.S. government's many fleets of vehicles to use zero emissions by 2035.

A 1973 Chevrolet Impala with a V8 once passed emissions without a catalytic converter, thanks to Honda technology.

Continuing its assault on internal-combustion engines of all sorts, California has announced a ban on lawn equipment sales with small gas engines starting in 2024.

Catalytic converters are, primarily, used for cleaning up after your car. However, thieves and finding other... unique uses for the internals of this car part.

There's lots of debate as to whether or not building electric cars is actually going to save the planet. But there are more factors to look at than just cars if we really want a sustainable future.

Electric cars are growing more popular, and to make them sound more appealing, automakers are using terms like "zero emissions" and "carbon neutral." But what do those phrases mean?

Porsche is once again being sued in this class-action lawsuit over California emissions noncompliance. The lawsuit alleges Porsche cheats on warranty coverage as it relates to emissions repairs and components.

California is famous among consumers and enthusiasts alike for its strict emissions laws. Now, the California Air Resources Board has introduced new regulations for modified cars.

Despite their reputation for billowing smog, diesel engines aren't as dirty as they once were. But how do they stack up to gas?

It takes more carbon to make an electric vehicle than a gas-powered vehicle. So at what point does an EV become cleaner than an ICE vehicle? Now there is a way to calculate that answer.

Euro 7 emissions proposals are being looked at to possibly shorten the ban on internal combustion engine sales to 2026. That, or to make added emissions systems on vehicles more complex and expensive effectively making them uncompetitive.

The US Department of Justice has just unsealed an indictment involving three FCA employees that alleges they tried to develop a software-based emissions 'cheat device' for the 3.0-liter EcoDiesel V6. Here's what you need to know about the situation.

Besides efficiency and low-end torque, fewer CO2 emissions are one of the biggest advantages EVs have over ICE cars. However, even if and when EV batteries become truly affordable, gasoline- and diesel-powered cars won’t just disappear from roads. And not every classic car owner locks their vehicle up like a museum piece. This is why …

With the rise of hybrid and electric vehicle technology, many speculate that vehicles with gasoline and diesel engines are being phased out. Especially as emissions laws and diesel regulations tighten around the globe, we are bound to see increasing changes. The recent California mandate shows that things in the US are becoming more strict, as …