Costco in Duncanville (250 W US-67)

Quick, easy, cheap. however, be aware of possible wait as there aren't many pumps. This station is small.

While Costco requires a membership, you can go inside, purchase a gas card, come out and fill up easily. There are 10available pumps, always clean and a employee there to assist you if required. The gas is Grade A with proper detergents. I've been a member for over ten years and never once had an issue. At night the station is extremely well lit, again with employee assistance. Great place.

It offers the cheapest premium gas, but too many restrictions: You have to be a Costco member, the pumps are only operable during Costco business hours, which means they close at 7:00 p.m. on the weekends and 9:00 p.m. during the week, visa is the only credit card accepted. Walmart offers similar prices without those restrictions.

great job directing traffic flow

Must be a member.

This is for the most part the best (privately owned) gas station in the DFW area and aside from Fuel City thats public, probably the most consistently clean, well lit and only attended one here as well. Rarely overly packed and always the cheapest price(s)!

Has gas today as long as you are a member.

Amazing customer service

Best gas station EVER. Best prices

reg gas price went up 8 cents ; been at least two months since last increase. Still the cheapest price in the area. Praying for a major patriotic turn over in the Nov '22 elections , so reopen KEYSTONE pipeline to export instead of being import oil dependent.