Yes, shopping at Costco wholesale including Gas requires membership. You can eat at food court without being a member.
Yes you do. The card must be inserted before payment. No cash payments.
Yes, they require to insert a costco membership card prior to inserting your card payment (only credit/debit cards & costco gift card no cash for payment)
if Costco is open, gas is open.
If a member purchases a cash card... anyone can use it at the pump to get gas...
Thanks! Your answer is awaiting moderation.