The Environmental Protection Agency (EPA) has approved a form of synthetic diesel fuel, cracking open the door to more widespread use of biodiesel. Produced by California startup company Amarys, this synthetic diesel is called "No Compromise Fuel." It is...

It wasn’t enough that our GL320 is feeling a bit inferior now that Mercedes-Benz changed its name to GL350. (No, the displacement didn’t increase--even the GL320 designation was something of a fib, given the engine was a 3.0-liter.) Around...

For an alternative perspective on the future of the automobile, it may help to look at an alternative film. “Fuel” by Josh Tickle is a thought-provoking documentary that examines America’s addiction to oil and what we can do about...

Some automakers have had long-standing plans to offer diesel engines in this country. European automakers have stuck with those strategies despite the volatile price disparity between diesel and regular fuel. Japanese and domestic automakers, including Honda, Nissan and GM,...

Just as an expected new wave of efficient diesel-powered cars was set to come to the U.S., several automakers are canceling plans for upcoming diesels. Following news last week that General Motors suspended plans for a small diesel V8...

Part two of a two-part series. Also read “Can diesels save money and oil?” There are three main reasons diesel fuel costs so much, according to the petroleum experts we interviewed: Diesel prices track the economy – only with...

Part one of a two-part series. Also read "Why does diesel fuel cost so much?" As regular readers know, we’ve been impressed with the latest diesel cars we’ve tested. Both the Mercedes-Benz E320 Bluetec and the latest Volkswagen Jetta...