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Look for the notice above each pump as we add Kirkland Signature Clean Power detergent additive to the fuel at all our gas stations. http://www.costco.com/gasoline-clean-power.html
Look for the notice above each pump as we add Kirkland Signature Clean Power detergent additive to the fuel at all our gas stations. http://www.costco.com/gasoline-clean-power.html
Costco Gasoline. Something good just got better. Introducing Costco Gasoline with Kirkland Signature Clean Power Detergent Additive. Our improved gasoline now provides five times the EPA detergent requirement, cleans fuel injectors and intake valves to improve your car's performance. And it reduces emissions caused by dirty engines. Costco Gasoline with Kirkland Signature Clean Power Detergent Additive is available now.
