For months, diesel truck owners have wondered whether the Trump administration would dramatically roll back EPA emissions regulations and finally open the door to legal emissions deletes. On Thursday, ...

DEF sensors are more than just emissions components—they are key tools for managing fluid costs and optimizing vehicle ...

The days of brand-new production vehicles spewing massive black clouds of diesel exhaust fumes are over, largely thanks to the introduction of diesel exhaust fluid and selective catalytic reduction.

Diesel engines are known for several things. Power and torque are the biggest attractions, but there is another attribute that drivers like. They can rack up a lot of mileage without needing major ...

ETF testimony highlights the proven role of advanced diesel engines and SCR emissions control systems in delivering near-zero ...

The Environmental Protection Agency is requiring 14 major diesel engine manufacturers to provide detailed information about diesel exhaust fluid system failures that have affected farmers and truckers ...

Add Yahoo as a preferred source to see more of our stories on Google. U.S. Environmental Protection Agency Administrator Lee Zeldin was at the Iowa State Fair Aug. 12, 2025 with U.S. Small Business ...

I recently read a pretty startling statistic—in the next year, the off-highway engine market will consume about 20 million gallons of Diesel Exhaust Fluid (DEF). In the next five years that number is ...

The Environmental Protection Agency wants to change how diesel trucks respond when their emissions equipment runs out of diesel exhaust fluid or develops a fault. Under a newly proposed rule, future ...

If you regularly drive a modern-day diesel-powered vehicle, chances are, you know what Diesel Exhaust Fluid (DEF) is. A crucial component used by most modern vehicles with diesel engines, DEF — which ...

Since 2010, diesel-powered on-highway trucks in North America have been using selective catalytic reduction (SCR) as an exhaust after-treatment technique to control nitrogen-oxide (NOx) emissions. And ...