Costco gas is cheaper than most branded stations because Costco sells it at a small margin to keep members coming back
Costco operates gas stations at many of its warehouse locations and prices fuel below what you see at Shell, Chevron, or independent stations in the same area. The company does this intentionally — gas is a loss leader, meaning Costco makes little or no profit on each gallon. The real goal is membership retention: members who fill up at Costco are more likely to renew their annual membership and shop inside the warehouse.
You must be a Costco member to buy gas at a Costco station. The price you pay is the same whether you hold a Gold Star membership (the basic tier) or an Executive membership (the premium tier). Non-members cannot purchase fuel, even if they have a gift card or are willing to pay a higher price.
Costco gas is top-tier fuel, meaning it contains detergents required by the U.S. Environmental Protection Agency. This is the same standard that Shell V-Power, Chevron Techron, and Mobil Synergyn meet. Costco does not brand its fuel with a name, but the product itself meets the same chemical standards as premium-branded options.
Key Takeaways
- Costco membership is required to buy gas; the price is identical for all membership tiers.
- Costco fuel meets EPA top-tier standards for detergent content, the same as branded premium fuels at other stations.
- Costco gas stations accept Costco membership cards and Costco credit cards; most do not accept other payment methods.
- Costco typically has fewer pumps than traditional gas stations, so wait times can be longer during peak hours.
- Costco gas prices change weekly and are set by each warehouse location independently based on local market conditions.
How to pay at a Costco gas station
You can pay with a Costco membership card and a Costco Visa credit card, or with a Costco membership card and a regular Visa card. Some locations accept other payment methods, but this varies by warehouse. The safest approach is to bring your membership card and a Visa card (any Visa, not just Costco's).
You cannot pay with cash, a non-Visa credit card, or a debit card that is not a Visa. Apple Pay and Google Pay are not accepted at Costco gas pumps. If you have a Costco membership but no Visa card, you can purchase a Visa gift card inside the warehouse and use that at the pump.
Costco gas stations are typically open during warehouse hours, though some locations have extended pump-only hours after the warehouse closes. Check your local Costco's website or call the warehouse directly to confirm hours, because they vary by location.
Costco gas prices compared to other stations
Costco gas is usually 20 to 40 cents per gallon cheaper than Shell, Chevron, or Exxon in the same city. The exact difference depends on local market conditions, oil prices, and how much each brand is charging that week. On any given day, Costco may be the cheapest option in your area or tied with a discount chain like Speedway or Murphy USA.
Costco updates its gas prices weekly, typically on Thursdays or Fridays. The price is set by each warehouse location independently, so the cost at one Costco may differ from another Costco across town. You can see the current price at your local warehouse on the Costco website or by calling the gas station directly.
The savings add up over time. If you drive 12,000 miles per year in a car that gets 25 miles per gallon, you buy about 480 gallons annually. At a 30-cent-per-gallon difference, that is $144 per year in fuel savings alone — often more than the cost of a Gold Star membership.
Costco membership cost and what it covers
A Costco Gold Star membership costs $65 per year for an individual or $130 per year for a household membership (two cards). An Executive membership costs $130 per year for an individual or $260 per year for a household membership. Both tiers include gas station access at the same price.
The membership also covers shopping inside the warehouse for groceries, household items, electronics, and other goods. Costco members receive an annual 2% rebate on most purchases (called the Costco Rewards rebate), though this applies only to Executive members and only on warehouse purchases, not gas.
Memberships renew automatically on the anniversary of your sign-up date. You can cancel anytime before renewal and receive a prorated refund for the unused portion of your membership.
Wait times and pump availability at Costco gas stations
Costco gas stations typically have 16 to 20 pumps, compared to 40 or more at a traditional Shell or Chevron station. Because Costco prices are lower and membership is required, the pumps fill up quickly during peak hours — usually late afternoon on weekdays and midday on weekends.
Wait times of 10 to 20 minutes are common during busy periods, especially on Fridays and Saturdays. Early morning (before 9 a.m.) and late evening (after 7 p.m.) are typically quieter. If you live near a Costco with a high-traffic warehouse location, you may want to fill up during off-peak hours to avoid the line.
Costco gas stations occasionally close for maintenance or run out of fuel during extremely busy periods. This is rare, but it happens. If you are planning a long trip and want to fill up at a specific Costco, call ahead to confirm the station is open.
Costco fuel quality and what top-tier means
Top-tier fuel contains a higher concentration of detergents than regular fuel. These detergents clean fuel injectors, intake valves, and combustion chambers, which can improve engine performance and fuel economy over time. The EPA does not mandate top-tier fuel — it is a voluntary standard set by fuel manufacturers.
Costco fuel meets the top-tier standard set by the Top Tier Gasoline Program, which is maintained by the American Automobile Association (AAA). Other top-tier brands include Shell, Chevron, Mobil, Texaco, and Sunoco. Budget brands like Speedway and Murphy USA typically sell regular-grade fuel without top-tier detergents.
Your car's owner manual will specify whether it requires top-tier fuel or regular fuel. Most vehicles run fine on regular fuel, but some high-performance engines or luxury vehicles recommend top-tier. Costco fuel works in either case — it will not harm an engine that only requires regular fuel, and it meets the standard for engines that need top-tier.
Costco gas station locations and how to find one
Not every Costco warehouse has a gas station. Costco operates gas stations at roughly 60% of its U.S. locations. Urban warehouses and smaller locations often do not have pumps due to space constraints or local zoning restrictions.
You can find the nearest Costco gas station by visiting Costco.com, entering your zip code, and filtering for locations with gas. The Costco mobile app also shows gas prices and availability at nearby warehouses. You can call your local warehouse directly to confirm whether it has a gas station and what hours the pumps are open.
If your nearest Costco does not have a gas station, you can still use your membership to shop inside the warehouse. Some members drive to a different Costco location specifically to fill up if the price difference or fuel quality is worth the extra drive.
Frequently Asked Questions
Can I use a Costco gift card to pay for gas?
No. Costco gift cards work inside the warehouse but not at the gas pumps. You must use a Costco membership card paired with a Visa card (Costco Visa or any other Visa) to pay for fuel.
What if I let my Costco membership expire?
You cannot buy gas without an active membership. If your membership has expired, you can renew it inside the warehouse or online at Costco.com. Once renewed, you can use the gas station when ready.
Does Costco gas have ethanol in it?
Yes. Costco gas contains 10% ethanol (E10), which is the standard blend sold at most U.S. gas stations. If your vehicle requires ethanol-free fuel, Costco does not offer that option. You would need to visit a specialty fuel supplier or a station that explicitly sells ethanol-free gasoline.
Is Costco gas the same quality as Shell or Chevron?
Costco fuel meets the same top-tier detergent standard as Shell and Chevron, so the chemical quality is equivalent. The main difference is price — Costco sells at a lower margin. Some drivers report no difference in engine performance or fuel economy between Costco and branded fuel.
Can I buy gas at Costco if I only have a household membership card?
Yes. A household membership includes two cards, and either card can be used to buy gas. Both cards have the same access to the gas station and the same pricing.