The Casey’s General Store on Iowa Avenue in Marshall town is one of a large number of gas stations in Iowa that sells biodiesel and ethanol-blended fuels. At this gas pump, a customer could choose biodiesel blended fuel, green, or an ethanol-blended gasoline, white. Gas stations dot Iowa’s countryside and cities, and words like “biodiesel” […]
source http://www.ncairways.co/renewable-energy/biofuels-an-important-part-of-iowa-ag-economy/
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