Yes, If You Drive Enough to Cover the Membership
Warehouse club gas is worth it for most regular drivers: Costco gas averages about 34 cents per gallon below the national average, and Sam’s Club and BJ’s average about 26 cents below, according to OPIS data. Those discounts almost always beat a year’s membership fee for anyone who fills up at the club regularly. The clubs treat fuel as a member benefit rather than a profit center, so their pumps undercut nearby branded stations by design.
The 2026 Price and Membership Breakdown
| Costco | Sam’s Club | BJ’s | |
|---|---|---|---|
| Typical savings vs national average | About 34 cents per gallon | About 26 cents per gallon | About 26 cents per gallon |
| Standard annual membership | $65 | $60 | $60 |
| Premium tier | $130 Executive | $120 Plus | $120 Club+ |
| Extra fuel perk on premium tier | None on fuel itself | Higher in store rewards | 5 cents per gallon cash back on fuel with Club+ |
| Fuel quality | Top Tier certified | Varies by location | Varies by location |
The Break Even Math
Here is how to decide, using clearly labeled example numbers. Take a Costco member who saves 20 cents per gallon versus the local branded stations, a conservative estimate below the 34 cent national average gap. The $65 membership divided by $0.20 per gallon means 325 gallons to break even. An average driver covering 13,500 miles a year in a car getting 25 miles per gallon uses about 540 gallons a year. That leaves 215 gallons of pure profit: about $43 in net annual savings from gas alone, before counting any grocery savings.
Sam’s Club and BJ’s math is even kinder. At the same 20 cent per gallon savings, the $60 fee needs just 300 gallons to break even, leaving the same 540 gallon driver with about $48 in net yearly savings. If you grab a promotional first year membership, which the clubs frequently offer, the break even point can drop to under 100 gallons.
When Warehouse Club Gas Is Not Worth It
The math fails for light drivers. If you drive only 5,000 miles a year at 30 miles per gallon, you use about 167 gallons, which at 20 cents saved per gallon is $33, less than any membership fee. Distance matters too: a 20 minute detour to the club costs time and fuel, and Costco lines at peak hours can stretch 15 to 20 minutes. If the nearest club is far away or you fill up only a few times a month, stick with cheaper local stations and a rewards card instead.
Costco vs Sam’s vs BJ’s: Which Club Wins on Gas?
Costco has the deepest average discount at 34 cents per gallon and Top Tier certified fuel, which Consumer Reports notes contains extra detergents that help engines last longer. Sam’s Club and BJ’s save a bit less at the pump on average but charge lower standard fees. BJ’s stands out if you take the Club+ tier, since the extra 5 cents per gallon back on fuel stacks on top of the already lower pump price. In practice, the best club is usually the one closest to your commute, because convenience determines whether you actually use the benefit. Check current promos before joining: the clubs routinely offer new member deals that nearly cover the first year’s fee.
How to Get the Most From Club Gas
Time your visits for weekday mornings or evenings to skip the worst lines, and combine the fill up with your grocery run so the trip does double duty. Costco’s extra long hoses let you use any open pump regardless of which side your tank is on, so do not wait in a longer line just for your side. Pair club gas with a rewards credit card that pays cash back on fuel where the club accepts it. Note that Costco gas stations accept only certain payment types, so check the rules at your location. Diesel drivers should check our diesel guide for club diesel availability.
Do you need a membership to buy warehouse club gas?
Yes, in almost all cases. Costco, Sam’s Club, and BJ’s gas stations require an active membership to pump. That is exactly why the fuel is priced as a member benefit.
Is Costco gas good quality?
Yes. Costco gasoline is Top Tier certified, meaning it contains a higher level of detergent additives than the minimum required, which helps keep engines cleaner.
How much cheaper is Sam’s Club gas than regular stations?
Sam’s Club averages about 26 cents per gallon below the national average according to OPIS data, though the gap at your local station can be larger or smaller. Compare stations near you to check.
Can you use a credit card at Costco gas?
Costco accepts Visa credit cards at the pump, plus debit cards and Costco gift cards. Paying with the right method matters, since a strong rewards rate can beat a small cash discount at the pump.
Facts verified October 2026. Prices, taxes, and app terms change over time and vary by state.