Price position
Below the UK average on tracked fuels.
Unleaded is 8.5p below the UK average. Diesel is 8.8p below the UK average.
Supermarket
Costco Fuel Prices and Stations
Compare Costco unleaded and diesel averages with the UK average, see the cheapest Costco stations and find one near you.
22 stations across the UK.
7-day average unleaded 164.4p/L (8 stations), diesel 189.2p/L (9 stations). Prices updated 22 Oct.
Costco at a glance
Compared with the UK average. Price data changed 22 Oct 2026.
Stations
Fuel type
22 stations
Page 1 of 2
Showing each station's standard unleaded price, or its super unleaded price if standard unleaded isn't listed.
156.9p/LUnleaded
160.9p/LUnleaded
161.9p/LUnleaded
161.9p/LUnleaded
162.9p/LUnleaded
163.9p/LUnleaded
164.9p/LUnleaded
164.9p/LUnleaded
164.9p/LUnleaded
165.9p/LUnleaded
165.9p/LUnleaded
165.9p/LUnleaded
166.9p/LUnleaded
166.9p/LUnleaded
166.9p/LUnleaded
166.9p/LUnleaded
166.9p/LUnleaded
166.9p/LUnleaded
168.9p/LUnleaded
168.9p/LUnleaded
About Costco
- Brand type
- Supermarket
- Stations tracked
- 22 stations
- Rewards
- No rewards listed
- Current price data
- Price data changed 22 Oct 2026
Costco sells fuel only to Costco members, at around 20 self-service petrol stations, almost all next to a Costco warehouse. In May 2026 it opened its first standalone petrol station, at Westhill near Aberdeen.
You'll need your physical membership card: scan it at the pump before you pay by card, because the digital card in the Costco app can't yet be used at petrol stations.
Costco sells Kirkland Signature Unleaded, Premium Unleaded 97 and Premium Diesel; there's no standard diesel. Membership starts at £30 a year (Business) or £42 (Gold Star or Online), so the savings make most sense if you already shop at Costco or fill up often.
At a glance
- Around 20 UK petrol stations (21 in May 2026), for Costco members only.
- Almost all are next to a Costco warehouse; the first standalone station opened at Westhill, Aberdeen, in 2026.
- Self-service pumps.
Fuel and energy options
- Kirkland Signature Unleaded, Premium Unleaded 97 and Premium Diesel.
- No standard diesel.
Loyalty and payment
- Scan your physical Costco membership card at the pump.
- The digital membership card can't yet be used at petrol stations.
- Membership: £30 a year (Business), £42 (Gold Star or Online) or £84 (Executive).
Who this brand suits
- Costco members who live or work near a warehouse and fill up regularly.
- Diesel drivers happy to buy premium diesel.
- High-mileage drivers who'll save enough to cover the membership fee.
Before you go checks
- Bring your physical membership card.
- Check the petrol station's opening hours on the station page.
- If you want standard diesel, note that Costco only sells Premium Diesel.
Known variation note
Prices are only available to members, so compare the cost of membership with what you'd save.
Sources
- Costco UK membership
- Costco UK digital membership card
- Kirkland Signature fuel
- Forecourt Trader: Costco opens first standalone petrol station (May 2026)
- Costco UK store finder
Sources last reviewed 17 Oct 2026.
All-grade averages
Unleaded165.4p/L
Diesel190p/L
Cheapest station near you
Enter a postcode to find the lowest prices nearby.
Find cheap petrol near youCurrent Costco fuel prices
Average prices by fuel type, compared with the UK average.
Super unleaded
176p
15.5p (8.1%) below
Unleaded
165.4p
8.3p (4.8%) below
Diesel
190p
8.8p (4.4%) below
Premium diesel
Quick summary
Fast read of how Costco is performing right now.
Key insight
Costco prices are typically 8.5p below the UK average.
Use the comparison and distribution sections below for local context.
Most competitive areas
Best average unleaded value appears in Cheshire and West Yorkshire.
Regional averages are directional and can change as fresh prices arrive.
Freshness coverage
36% of stations changed their unleaded price in the last 7 days (14% in the last 24 hours).
Based on 22 stations with an unleaded price. Prices that haven't changed for 7+ days may still be right, but check them before travelling.
Coverage snapshot
Strongest county coverage is Greater Manchester.
2 stations in that county; 22 stations tracked overall.
Price comparison
Compare Costco averages to other supermarkets' average and the UK average.
What this means: Unleaded is 6.4p/L below the other supermarkets' average and 8.5p/L below the UK average. Diesel is 6.6p/L below the other supermarkets' average and 8.8p/L below the UK average.
Unleaded
165.4p/L
Other supermarkets' average
-6.4p/L
Below benchmarkAbove benchmark
UK average
-8.5p/L
Below benchmarkAbove benchmark
Diesel
190p/L
Other supermarkets' average
-6.6p/L
Below benchmarkAbove benchmark
UK average
-8.8p/L
Below benchmarkAbove benchmark
Price distribution
What this means: Typical unleaded prices span about 2.7p across the middle of the range, so pricing is moderately spread. Typical diesel prices span about 5.7p across the middle of the range, so pricing is more uneven from one station to the next. Diesel pricing varies more than unleaded across this brand.
Unleaded
165.9p
Diesel
190.4p
Brand snapshot
A quick read on price freshness, coverage, and facilities for Costco.
Data freshness
Coverage snapshot
Most competitive areas
Reported amenities
Restrooms
How to use this brand guide
Use this guide to see how Costco prices compare across the UK. The averages show whether prices run above or below the national level, and the distribution highlights how much local prices vary. Use the freshness labels to prioritise recent data when comparing value, and jump to station details for opening hours and facilities.
To see what a fill-up costs at any of these stations, enter its pump price in the fill-up cost calculator.
Planning a longer trip? Pair the journey cost calculator with the route planner to compare pump price savings against detour time. For regional context, jump to county pages or the UK price map to see where this brand is most competitive, or explore the fuel calculators for cost comparisons.
Brand FAQs
Yes. Costco sells fuel only to members. Membership starts at £30 a year (Business) or £42 (Gold Star or Online), so the savings make most sense if you already shop at Costco or fill up often.
Not yet. Bring your physical membership card and scan it at the pump before you pay by card.
No. Costco sells Kirkland Signature Unleaded, Premium Unleaded 97 and Premium Diesel, but no standard diesel.
We use the latest recorded prices across Costco stations, prioritising E10, then E5, then unleaded (and the latest diesel when available).
Some stations may not have reported a recent price yet, so averages and comparisons change as stations report new prices.
Use postcode search to compare nearby stations and sort by lowest price.