This Cistco gas is typically open acouple hours prior to the store opening. It stays open usually 1 to 2 hours after store closing. You can pay with your costco credit card. You have to use your Costco card to start the pump and then you can pay with another card, just like in the store.
Nope on both.
As long as you have a Costco card you can get gas at pump anytime.
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