Arco is usually around the same price as Costco. But Costco is usually cheaper than all the others. Also if you use the Citi Costco credit card you get 4% back, so that is another 12 cents per gallon if gas is $3 a gallon.
15 to 20 cents cheaper
it is cheaper about average $0.10/gal than Arco, $0.30 cheaper than Chevron or Shell usually.
About 10 to 20 cents cheaper than a gas station
Yes less expensive, difference depends what gas station
Thanks! Your answer is awaiting moderation.