Submit New Prices Regular: Supreme Plus: Plus: Propane: Supreme: Diesel: Costco Gas Exit 142b Federal Way, Washington, USA Fuel Vendor: Costco Present Fuel Prices Regular Expired! Supreme Plus Expired! Plus Expired! Propane Expired! Supreme Expired! Diesel Expired! These prices were submitted by: wmirza on Sun, May 09 04:34PM. Currently Browsing: GasWars | USA | Washington | Federal Way | Costco Gas   Auto-generated by GasWars Engine version 0.19 Copyright © 1999-2006, by GasWars Online. All rights reserved.