How to refuel when driving in Canada ?

Canadian fuel prices are in line with international oil prices, with gasoline costing about 1.2-1.6 Canadian dollars per liter and diesel being slightly cheaper. Most gas stations are self-service and accept payment by cash or credit card. Local fuel terminology includes: gas station, regular (87 octane) gasoline, extra (89 octane) gasoline, supreme (91 octane) gasoline, and diesel. In Canada, diesel fuel nozzles are usually yellow, while gasoline nozzles are typically black. Gasoline comes in three grades: 87 (regular), 89 (extra), and 91 (supreme), with 87 octane being equivalent to 97 octane in domestic fuel standards. Self-service fueling in Canada can be done by either self-swiping a credit card at the pump or self-fueling and then paying at the counter. In French-speaking areas like Montreal and Quebec, the fuel labels and instructions on the pump are in French, so it's advisable to ask the staff for assistance if needed. Commonly seen gas stations in Canada include Esso, Shell, Chevron, PetroCanada, Husky, and Mohawk.