car- VW Tdi Biodiesel

The first TDi engine was a 2.5L inline five-cylinder introduced in the Audi 100 in 1989. Over time, the TDI arrangement has been enhanced by improving the efficiency of the turbocharger, increasing the pressure at which fuel can be injected, and more precisely timing when the injection of fuel takes place. There have been a few major generations, starting with what are known as "VE" engines. In 2000, the Pumpe D

Averaging 40+ MPG, VW TDIs are one of the most fuel efficient vehicles available...and they run Biodiesel!