ARCO in Costa Mesa is a gas station offering TOP TIERâ„¢ fuel, often noted as the cheapest or lowest priced in the neighborhood. The location is clean, well-run, and easy to pull into. It features a convenient mini-mart design with an attached AM/PM and a Jack in the Box, allowing easy movement between the gas station, convenience shop, and restaurant without going outside. This setup provides something for everyone, serving as a last chance for gas and eats directly at the freeway ramps. The station has a water and air pump and the staff is helpful. However, the area can get sketchy at night with homeless activity nearby and the pumps get packed on weekday mornings. Some reviews note the location seems to have gone a bit downhill, appearing less alive and dark, with very different hours of service that limit late-night access to food, the bathroom, and the AM/PM shop.