Costco Gas in Seattle, WA
2 stations in Seattle, Washington
Costco Gas Hours in Seattle
Seattle has 2 Costco gas stations. Weekday hours are typically 6 AM to 8:30 PM. Saturday hours are 7 AM–8:30 PM. Sunday hours are 7 AM–8:30 PM. Membership is required at the pump. Costco gas is TOP TIER™ certified, meeting enhanced detergent standards recommended by most major automakers.
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