Fusor, if you gas up in Canada and you claim it's $.80CAD per Liter, then that is way higher than $1.70US per Gallon(US).
1 Gallon (US) equals 3.79 Liters and costs $1.70US per Gallon to $.80CAD per Liter of fuel.
1 CAD = 0.68 USD
So to fill 1 Gallon of fuel with Canadian dollars would be 3.03$CAD which in turn comes out to $2.04US.
So to conclude, your payment comes to $2.04US per Gallon as to $1.70US per gallon where Crash lives.