Cummins and PACCAR are updating diesel engine software to give operators more time to address certain DEF-related issues ...

EPA's relaxed NOx rule, as many expected, removes the warranty extension—and proposes annihilating the troublesome DEF derate ...

Updated diesel engine software gives truck operators more time to address emissions-system issues while staying compliant ...

Cummins and Paccar are rolling out software updates tied to revised EPA guidance on DEF inducement. The changes aim to ...

Cummins is rolling out updated engine calibrations that give truck operators more time to address diesel exhaust fluid (DEF) ...

On the heels of clarifying farmers’ right to repair their own equipment, EPA is escalating pressure on diesel engine manufacturers over ongoing Diesel Exhaust Fluid (DEF) system failures the ...

The MarketWatch News Department was not involved in the creation of this content. Washington, DC, April 21, 2026 (GLOBE NEWSWIRE) -- The Engine Technology Forum (ETF) today announced the availability ...

The U.S. Environmental Protection Agency, working hand in hand with the U.S. Small Business Administration, is providing relief for any farmer whose tractor has suddenly shut down mid-field, or ...

New online resource provides policymakers, industry stakeholders, and the public with trusted information on clean diesel technologies.

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 ...