What will ethanol rule change mean to you?

USA Today
Updated 10-14-

The Environmental Protection Agency's waiver on Wednesday allowing gasoline to contain up to 15% ethanol is sure to both confuse and worry motorists. What can be expected from adding more of the corn-based alcohol? USA TODAY's Chris Woodyard tries to answer some basic questions:
•How soon will the change take place?

The EPA waiver clears the way for gas stations to start selling fuel with 15% ethanol, or E15, for cars and trucks built since 2007. Producers must go through a registration process, which could add a few months before it goes on sale. Currently, gasoline has up to a 10% ethanol blend.

The EPA may extend permitted use to 2001-06 vehicles in November, depending on how testing turns out.

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