Diesel particulate filters help cleanse exhaust and give us cleaner air to breathe, but they cause frequent grief and expense.

The federal budget package approved by the U.S. House and U.S. Senate includes a 50 percent increase in funding for a clean air program that reduces...

Volvo Group stock fell after the Sweden-based truck and engine maker announced it was investigating the potential failure of a critical emissions control...

The EPA is serious about further reducing exhaust emissions and boosting vehicle fuel economy. But the agency official’s remarks suggested that it intends...

The U.S. Environmental Protection Agency (EPA) announced that $26 million in grant funding will be made available to establish clean diesel projects with...

Denso announced it has expanded its PowerEdge diesel aftertreatment products line to include light- and medium-duty trucks and vans.

The DERA funding covers engine replacements, repowers, and idle reduction technologies to clean up a variety of older diesel engines, including those in...

Cummins showed off an emissions reduction concept that promises drastic reductions to NOx and particulate matter emissions in future diesel engines.

The new California Air Resources Board standard mandates that by 2045, every new truck sold in California will be zero-emission.

More than 37 percent of all diesel medium and heavy duty commercial trucks registered in the U.S. are now equipped with newer technology clean diesel...