They only sell gasoline, and the price per liter is about 10 to 15 cents cheaper than regular gas stations. Open only during hours similar to Costco store opening hours.
The International Costco Card allows you to refuel by showing your card to a gas station attendant. Gas price includes tax. I think it would be a good idea to set the price of all items with tax included.
(In South Korea, if all prices you see include tax, restaurants also have a no-tip culture, which is very convenient)
Gas prices here are consistently higher than other regional Costco gas bars, often only beating competitors by 1-3 cents. On a 60L fill that’s only a savings of 0.60-1.80 per fill. Is that really worth driving to this remote location and waiting in long queues? Also to the loser people that drive more vehicle than they know how to handle, ie) not comfortable pulling up to the front pump when it’s open/must wait to pull straight through …duh! … please just go to nearest full serve station as they cater to half wits like you.
Decent prices and even if there's a line up, it isn't a long wait. Maybe 5 min to get to a pump, I don't mind the short sait for a more reasonable price.