Diesel engine exhaust contains pollutants such as nitrogen oxides and soot particles. Although governments from the late 1990s onward encouraged their uptake in the belief they were more ...

Hybrid cars have been getting a lot of publicity lately. Now some manufacturers are offering another option: "clean diesel" cars. Some can get 40 or even 50 miles to the gallon; they aren't the noisy, ...

Despite Holman Jenkins’s assertions in “The Lessons of ‘Dieselgate’” (Business World, Jan. 5), diesel engines can, and do, meet progressively more stringent clean-air standards in California, the rest ...

More clean diesel trucks are a part of the nation’s fleet, escalating over the past five years, which subsequently yielded lower emissions and greater fuel savings, new research shows. The Diesel ...

My journey to clean up diesel emissions began 24 years ago. As Director of the Office of Transportation and Air Quality at the U.S. Environmental Protection Agency, I chaired a public hearing in ...

After getting plenty of use out of the 1999 diesel dump truck, the town will be getting a brand new, fully-equipped upgrade thanks to a Clean Diesel Grant ...

WASHINGTON -- Volkswagen's clean diesel wasn't the technological marvel it appeared to be. But the marketing campaign for it was a juggernaut, helping to move more than half a million diesel vehicles ...

For years, Volkswagen promoted its TDI models under the "clean diesel" banner, portraying them as environmentally superior, due to their high fuel economy while (supposedly) meeting strict new ...

You don't often see the words "clean" and "diesel" put together like that, but get ready for some big changes to the diesel landscape. Starting in October 2006, gas stations and truck stops will sell ...

'Dr. George' J. Molteni asking about how the low sulfur diesel that is now at gas stations affects the fuel economy. Here is the answer, according to a report from the DOE's Energy Information ...

“There’s a false assumption that natural gas vehicles are more costly because they meet such high environmental standards, but that’s simply not the case,” said Chad Lindholm. “Our natural gas vehicle ...

The Federal Trade Commission (FTC) sued Volkswagen Group of America (VGoA) on Tuesday, alleging that VGoA deceived American consumers with its “Clean Diesel” ad campaign. The FTC charged that "Super ...