. "Appears as though most of Ethanol that actually is produced is from Corn and Wheat....Also appears as though imports are needed since Canada can not meet demands for ethanol.Canada imposes tariffs of 5 cents per litre for imports, but that excludes US because of Nafta...I do not think there is a requirement to use the link feature of gasbuddy...But it is advisable to backup information with reliabl" . . . .