Costco Fuel Prices Today
Current Costco pump prices — and whether the membership is worth it for fuel alone.
Costco operates around 30 UK forecourts attached to its warehouse stores, and they are routinely the cheapest fuel anywhere in the country — often 5-10p per litre below the nearest supermarket. The catch is the £33.60 annual Trade or £18 (limited) membership.
fuelfinder.ai shows live Costco prices alongside every nearby Asda, Tesco, Sainsbury's and independent, sourced from the UK Government's CMA open data feed. Use it to see exactly how big the Costco gap is in your area and whether membership pays for itself.
For a regular driver doing 12,000 miles a year, the Costco fuel saving alone typically covers the membership cost two or three times over.
How It Works
- Step 1: Find your nearest Costco — Enter your postcode — every Costco forecourt within range appears.
- Step 2: See the gap — Live Costco ppl alongside Asda, Tesco and other rivals.
- Step 3: Decide if it's worth it — If the saving covers your detour and membership, you win every fill.
Why Drivers Use fuelfinder.ai
- ~30 UK Costco forecourts — Every Costco fuel station that publishes to the CMA feed.
- Live prices — Refreshed multiple times daily from the official source.
- Free to check — No fuelfinder.ai account needed. Costco membership only required to fill up.
- Honest comparison — See exactly how much cheaper Costco is — or whether a closer rival wins today.
Frequently Asked Questions
Do you need Costco membership to buy fuel?
Yes. Costco fuel is members-only at every UK forecourt. Membership starts at around £18 a year for the limited tier, with most fuel-buying members on the £33.60 Trade card.
Is Costco fuel really the cheapest in the UK?
In most areas, yes. Costco pricing typically undercuts even the cheapest supermarket forecourt by 3-8p per litre. fuelfinder.ai shows the live gap in your area.
Why is Costco fuel so cheap?
Costco runs forecourts as a member benefit rather than a profit centre, accepts thinner margins and benefits from volume — its UK warehouses sell millions of litres per site each year.
How many Costco fuel stations are there in the UK?
Around 30 forecourts attached to UK Costco warehouses. Coverage is strongest in major metro areas and grows slowly with new warehouse openings.
Does Costco fuel come from the same refineries as supermarket fuel?
Yes. All UK petrol and diesel meets the same BS EN 228 / 590 standards regardless of brand. Costco fuel is identical in spec to Asda, Tesco or BP.