2008 Mercedes-Benz ML320 CDI Review
Despite its benefits, North Americans never fell in love with diesel engines the way the Europeans did. That's largely because for decades, diesel engines were inferior to their gas counterparts in terms of noise, smoothness and odour. For ages, Diesel fuel here was scarcely any cleaner or more refined than lamp-oil. Running this dirty stuff through one of Europe's ultra clean-burning engines would wreck its emissions hardware in a hurry.