Gas $1.99 gallon

In Fredericton, New Brunswick, Canada it is 85.5 cents per liter wich works out to $3.42 a gallon. It was $1.48 per liter $5.84 a gallon. So it is quite a bit cheaper but $3.42 a gallon canadian compared to $1.80 US seems to be a big difference for some reason, What gives!:wack: