Nine people convicted of bypassing emissions controls or selling equipment to do so have had their convictions overturned.

What maintenance does a diesel engine need to stay reliable in Maryland? HelloNation has published the answer in an article ...

Ryan Lalone, owner of Diesel Freak LLC of Gaylord, and brother and employee Wade Lalone, had pleaded guilty to conspiracy to ...

On July 3, 2026, President Trump pardoned early a dozen people who were convicted under the Clean Air Act for tampering with ...

No DPF. No AdBlue. Just a cast-iron block and a timing belt — and somehow this old VW diesel is still racking up half-million ...

What is the difference between Tier 3 and Tier 4 diesel engines? We explain EPA nonroad emissions standards, DPF, SCR, and ...

The future of clean construction equipment power is still evolving. Alternative propulsion for machines like excavators and dozers, which have utilized diesel engines for about 100 years, has centered ...

David Fickling is a Bloomberg Opinion columnist covering climate change and energy. Previously, he worked for Bloomberg News, the Wall Street Journal and the Financial Times. Big businesses can behave ...

Diesel is critical to Australia. Any supply disruption has immediate and widespread consequences, given Australia imports almost 80% of its liquid fuels. As the energy shocks of the Iran war ripple ...

SAN FRANCISCO (KGO) -- Diesel prices are climbing at a staggering rate across the country - and in California, they've reached some of the highest levels in the nation. The national average for diesel ...

The war in Iran has disrupted supplies of diesel, used to power trucks and heavy equipment, much more than gasoline, which is primarily used in passenger cars. By Emmett Lindner The price of diesel ...