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A survey of the quality of biodiesel blends in the United States was conducted in the winter of 2009–2010. Forty samples were collected in the study; two-thirds of the samples collected were from areas with a 10th percentile minimum ambient temperature below −12°C. Fuel properties were measured and compared to the relevant ASTM D7467-09 specification properties. The B6–B20 study shows increased compliance...
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