A little more, here is the TX approvals for using B20 blends in TxLED requirements:
http://www.tceq.state.tx.us/implemen...l#Formulations
example, "ORYXE Energy International, Inc. OR-LED 3 diesel fuel additive blended with a B20 comprised of 20 percent ASTM D6751-compliant B100 biodiesel and 80 percent diesel fuel as defined under 30 TAC §114.6".