Gas in the Iowa City area is down 9¢ from last week, now averaging $4.13 a gallon. Filling a 15-gallon tank in the Iowa City area costs about $20 more than a year ago. It is $4.13 a gallon, $1.36 more than a year ago. Filling a 15-gallon tank costs about $20 more. It is $4.13 a gallon, down 9¢ from last week but still $1.36 above a year ago. Prices are AAA's daily averages for regular gas, last updated October 20.

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