i would like to know where you get this information from besides just converting your currency then multiplying the liter-> gallon ratio. 1 US gallon = 3.78541178 litres Gas = 120.3 a litre. 120.3 * 3.78541178 = 454.73. Canadian Dollar is at par with the American Dollar right now. So rougly $4.50 CDN for an American gallon right now.