Diesel gets a witness

Finally, someone is stepping forward to make the case for diesel. I was watching MSNBC last week and saw a Mercedes ad boasting that its new Blue Tec diesel engines are fuel efficient, fast and a smart way to cut petroleum use. It also makes the case that these new diesel engines are high tech—an important message for many Americans who ahve bad memories of diesel cars and see modern diesel as the domain of pickup truck drivers and semis.

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