Driving up demand for diesels

Today diesels are enjoying a resurgence not seen since those gas-line days of the 1970s, driven by rising gas prices and interest in burning biodiesel. Diesel engines get great mileage – 20 to 40 percent better than their gas-burning counterparts – and the new generation burns much cleaner than the old diesels, experts say. Most can run biodiesel – at least the blended versions – without risking damage to the engine or the warranty.

Volkswagen’s diesels, known as TDIs, are the best-selling diesels in the United States, and whether it’s the Golf, Beetle Jetta, or Passat, it’s in high demand, Speers said.

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