Costco Gas Station is a membership-based fuel center offering Kirkland Signature gasoline, a Top Tier rated fuel that cleans engines. The gas is consistently cheaper, often by 30 cents to a dollar, making the savings significant. While lines can be long, sometimes stretching to the street, they generally move quickly, especially outside of peak hours. The station is always clean, and attendants are available to help. Customers are reminded to pull forward fully at the pumps to avoid blocking traffic. Some note a wish for added amenities like air compressors or windshield cleaning stations. Despite waits, it is widely considered the best bet for gas in the area.