transit bus

The National Renewable Energy Laboratory (NREL) has just completed the first year of a study comparing St. Louis transit buses running on B20 biodiesel and ultra-low sulfur diesel (ULSD). Surprisingly the B20 buses actually had slightly lower average mileage than the ULSD fleet, 3.52 vs 3.58 mpg. ...

When most people think of hybrid vehicles, the Prius, or other similar petrol-electric passenger vehicles come to mind. But there is another hybrid revolution under way in the stop-start world of transit buses; hybrid diesel-electrics. Around 20 percent of all transit buses are now hybrid ...