The prices at the pump usually save a few cents, but the best part is the cash back with their credit card. It's easy to use the pump with the Costco Citibank card, you only need to insert it and it works for membership verification and payment. If you're using apple pay with the Citibank card, you'll need your membership card first. Then you can tap to pay.
The attendant at the pump is helpful if you're having trouble with your membership card and they are polite. Occasionally, they will chat with you while you pump your gas. They wipe the pumps periodically and it's comforting to have them there at night when it's dark. read more