Browse the most recommended diesel injector cleaners to maintain your car's engine and performance ...

Scientists are exploring a surprisingly simple way to clean up diesel engines: adding tiny droplets of water to the fuel. During combustion, the water rapidly vaporizes, triggering micro-explosions ...

New regulatory guidance for diesel engines could save U.S. industries billions of dollars for farmers and truckers, but clean-air advocates say it could pose a significant risk to public health. Lee ...

Near Delhi, IX Energy installs new electric powertrains to convert old diesel trucks into zero-emissions vehicles. But more retrofitters are needed if the Indian capital is to meet its 2030 climate ...

The feds aren't scrapping DEF altogether, but this could potentially address a large portion of emissions system failures.

Worland is a senior correspondent at TIME, based in the Washington, D.C., bureau. He received Covering Climate Now’s inaugural Climate Journalist of the Year award in 2022, among other awards. He is ...