See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The U.S. could soon experience a severe shortage of diesel exhaust ...

Which diesel exhaust fluid is best? When you have a diesel vehicle, besides adding fuel, you need to add diesel exhaust fluid. Diesel-powered vehicles require diesel exhaust fluid to reduce engine ...

The 6.7-liter Cummins diesel is among the top powertrain picks for the Ram 2500 HD, earning it a considerable following. But ...

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 ...

Environmental Protection Agency (EPA) Administrator Lee Zeldin has announced plans to eliminate restrictions placed on diesel-equipped vehicles when they run out of diesel exhaust fluid (DEF).

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 ...