Biofuel 'Brown Takes Ride On Green Train' 'Buyers of Jeep's newest full-sized sport utility vehicle will hit the road with a tankful of a diesel fuel blend made from soybean oil, fast-food grease or vegetable oil.' 'Green fuel to power G8 Summit vehicles' B5 is 5% biodiesel and 95% fossil fuel "And the funniest thing is - it's only 20% biodiesel!" A pump full of B5