Difference is, that one was not mandated, but voluntary.<quoted text>
I think Carter was President when the Arab Oil Embargo of 1973 happen not Bush which force Congress to respond to petroleum shortage by passing the Energy Tax Act of 1978, which provided an exemption to the 4 cents/gallon federal fuel excise tax on gasoline for fuel blended with at least 10 percent ethanol!!
It was Bush's 2005 Energy Policy Act that mandated the use of ethanol in gasoline. DUH
Dictator Bush forced the use of ethanol on the USA by law. So much for states rights.
Sorry, you lose. Play again.