Two State Representatives are introducing legislation in Springfield to eliminate the sales tax Illinois places on gasoline. Democratic Representatives Sue Scherer and Jack Franks are sponsoring the measure. If approved, the bill would remove the 6.25 percent sales tax starting next July. On Friday, GasBuddy.com reported the average price for a gallon of regular gas in Illinois is $3.62. That is 10 cents above the national average and about 22 cents higher than a gallon of regular gas in St. Louis.