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 ...

Your gasaholic friends may not believe you, but feel free to tell them that diesels will soon be cleaner than current gasoline engines. It's not a trick-they'll have to be that clean if manufacturers ...

It's a known fact that additional air can provide improvements in engine performance and fuel efficiency. But most truck owners don't realize that the quality and temperature of the air has a lot more ...