Costco Gasoline
Our Fuel Promise
Our Fuel Promise
You Deserve Higher Quality Gasoline...
Several automobile manufacturers recommend the use of TOP TIER™ gasoline to maintain optimal performance. Costco is listed as a TOP TIER™ gasoline retailer. Find out more at www.toptiergas.com.
Kirkland Signature™ Gasoline contains five times the EPA detergent requirement in both regular unleaded and premium grades, and is formulated to clean your engine and help your vehicle run like new.
As our valued member, you expect Costco to always offer the finest quality products at the best possible price. Our fuel is no exception. Costco has closely studied fuel additives and engine deposits, and conducted extensive engine tests at nationally-recognized laboratories. Accordingly, we decided to increase the detergent additives in our fuel to provide a better value to our members.
Learn more about the benefits of Kirkland Signature™ Gasoline.
Several automobile manufacturers recommend the use of TOP TIER™ gasoline to maintain optimal performance. Costco is listed as a TOP TIER™ gasoline retailer. Find out more at www.toptiergas.com.
Kirkland Signature™ Gasoline contains five times the EPA detergent requirement in both regular unleaded and premium grades, and is formulated to clean your engine and help your vehicle run like new.
As our valued member, you expect Costco to always offer the finest quality products at the best possible price. Our fuel is no exception. Costco has closely studied fuel additives and engine deposits, and conducted extensive engine tests at nationally-recognized laboratories. Accordingly, we decided to increase the detergent additives in our fuel to provide a better value to our members.
Learn more about the benefits of Kirkland Signature™ Gasoline.
While deposit control additives in diesel fuel have not been mandated by the EPA, we include them in Kirkland Signature™ Diesel to keep your injectors clean and help your engine deliver the best possible power and performance. In addition to deposit control additives, our diesel fuel also includes additives that improve cold engine startability and provide wear protection. These additives help improve combustion for easy start-up and smooth operation, and help protect critical fuel system components from harmful wear.
Learn more about the benefits of Kirkland Signature™ Diesel.
...and a Better Experience at the Pump.
Costco fuel station attendants are trained and focused on assisting you and keeping you safe at the pump, while keeping the station clean and well-maintained.
All of our stations are safe for the environment and constructed for hassle-free convenience. The one-way traffic flow eliminates gridlock and confusion, and our extra-long pump hoses let you fuel up from either side; which allows you to get on your way quickly.