GM Announces 2011 Duramax 6.6L Turbo Diesel with B20 Biofuel
8 Feb 2010, 07:42 UTC · By: Bogdan Popa / General Motors recently announced that its heavy-duty diesel pickups will feature B20 biodiesel capability, a mix of 20 percent biodiesel and 80 percent conventional diesel. The engine will be insta...