CleanDiesel

The Audi A3 TDI is typical of the clean diesel breed. It offers impressive low-end torque, belches out little in the emissions category and scores on the efficiency chart. The A3 also coddles both the driver and passengers with ...

Audi U.S.A's chief marketing officer, Scott Keogh, revealed the company's diesel dreams in a recent interview with Green Car Advisor. Keogh unveiled that Audi expects to, "more than double our existing diesel portfolio in the next year ...

In the past, the Environmental Protection Agency (EPA) typically issued grants for the advancement of proven technologies and rarely offered up government money on projects that some would consider experimental. As environmental concerns rose in recent years, the EPA created its emerging ...

Regular readers of these pages know that we tend to be big fans of modern diesel engines. Most of the past demons that had plagued oil burners over the years have been exorcised, including rough running, nasty smells, loud operation and narrow power bands. Sadly, though, for whatever reason, ...

First, a disclaimer. We understand that sulfur (or sulphur for you Brits) isn't the only less-than-desirable thing in or about petroleum diesel. There's nitrogen oxide (NOx), particulate matter (soot) and carbon dioxide, to name a few other pollutants. And, of course, petroleum diesel does come ...

Volkswagen of America, Inc. reported that clean diesels made up 85 percent of the 2,018 Jetta SportWagens sold in March. The load lugger's sales were up 78.9 percent year-on-year in March. Overall, the company's March 2010 sales rose 40.9 percent year-on-year to 22,148 total units – its ...

It has been said that the automobile was born in Germany, but it went to finishing school in France. We think that was supposed to be in reference to Bugatti, but in celebration of their first ever win at the Twelve Hours of ...

Thomas Built Buses, the school bus manufacturing unit of Daimler Trucks North America, has just received its first order for new clean diesel buses. Montgomery County in Maryland has ordered 59 new Saf-T-Liner HDX school buses equipped with selective catalytic reduction (SCR) systems. The SCR ...

Citroën's entry in the medium-large car segment is the C5. This sedan, which competes against offerings such as the VW Passat, gets updated with a couple of Euro V-compliant powertrains that reduce fuel consumption and CO2 emissions. First, the C5 gets the 1.6-liter THP turbo gasoline engine, ...

Audi will be launching at least three new models next month at the Frankfurt Motor Show, two of which seem like they have a good chance of coming to North America and one that doesn't. The A4 TDI clean diesel will make its debut at the German ...