If you have a Costco card and 30 minutes to wait in line this is the place for you! The lines do tend to be shorter in the early hours or before closing (much like Costco it self). They do require your card to be swiped before you swipe your debit card (I wasn't sure the first time I went here as theres not someone ringing you up). The prices are pretty cheap... I wouldn't say the cheapest.. but unless you want to drive across town to save $0.03 this is your next best option. Also something I didn't know until a few visits in... The pump hoses are long enough to reach to the other side of your car.. so just get in the shortest lane as opposed only picking the side your pump is on!