Eight commercial and government fleets were honored for their work to reduce toxic diesel emissions as part of the Northeast Diesel Collaborative Breathe...

Volkswagen's new leader promised that the company will survive a scandal over its gaming of U.S. diesel emissions standards and said a technical solution is...

While brand damage is too often guided by fickle retail perception, fleet buyers and sellers — those who have been around the block in the industry — have a...

The U.S. Environmental Protection Agency will implement additional testing of diesel vehicles designed to uncover potential software algorithms used to...

The U.S. Environmental Protection Agency will implement additional testing of diesel vehicles designed to uncover potential software algorithms used to...

Volkswagen has appointed Matthias Muller, the chairman of Porsche AG, as its new chief executive to replace the departed Martin Winterkorn, and will...

Volkswagen is set to appoint Matthias Muller, the chief executive of Porsche, as its new leader amid a widening scandal over its gaming of emissions testing...

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

Volkswagen's chief executive said the company is "deeply sorry" and plans to fully cooperate with the U.S. Environmental Protection Agency in its...

Because 7,750 engines were not fully assembled in 2009 but in 2010, the Environmental Protection Agency says Navistar should have obtained an exemption in...