If you have ever been stuck behind an old bus or diesel truck you know the smell and the amount of black smoke that is put into the air. Well Volkswagen has been trying to change the way we view diesel. With Volkswagen’s clean diesel technology the new engine delivers about 30 percent increase in fuel economy compared to a gasoline engine and a large reduction in greenhouse gas emissions.

Diesels are the most efficient internal combustion engines, firing on compression rather than an induced spark. Diesel fuel also delivers significantly higher energy content than gasoline yet is less flammable and explosive, making it a safer fuel.

Another improvement Volkswagen wanted to make sure was overcome was vibration. If you have ever been inside of an older diesel car truck or bus then you know it is not exactly a smooth ride and especially noticeable when idling. Volkswagen has worked this out by adding a 90-degree included angle between the cylinder banks which permits the free inertial forces to be fully balanced out.