State fuel taxes are on average 28.6 cents per US gallon, which combined with 18.4¢ Federal tax gives an average rate of 47 cents per US gallon (12.4 ¢/L).<ref>http://www.gasbuddy.com/</ref> | State fuel taxes are on average 28.6 cents per US gallon, which combined with 18.4¢ Federal tax gives an average rate of 47 cents per US gallon (12.4 ¢/L).<ref>http://www.gasbuddy.com/</ref> |