After years in the wilderness, diesel is coming home, although Americans may not recognize its freshly scrubbed face.
Drivers are wondering why the price of diesel, distilled from the same raw ingredient as gasoline, is rising faster.
Smoky but dependable diesel-powered cars were once considered eccentric choices, but many are still on the road.
The 24 Hours of Le Mans, on June 14-15, has suddenly become the battleground for diesel racecar supremacy.
The 5.7-liter diesel V-8 from General Motors was a train wreck, having come to market dreadfully under-engineered.
Biodiesel burns cleaner than petroleum-based diesel, but finding a place to buy it is tough.