The diesel engine has had quite a bumpy ride throughout automotive history. At first, it was seen as a loud and smoky powerplant, good only for taxis and company vehicles due to its efficiency. However, once direct injection tech like Common Rail and Pumpe Duse started appearing, car buyers were converted. That was especially true in Europe, where diesels outsold gas models in most markets in 2015. Understandably so, because turbodiesels were simply far more efficient, while providing a relaxed
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