Costco
Costco Wholesale Watford
Hartspring Lane Watford Patchetts Green WD25 8JS
149.9p/L
Price changed 06 Jun, 14:12This weekOpen now
Amenities
- Toilets
Supermarket
Costco fuel prices and stations
Compare Costco unleaded and diesel averages versus peer and UK benchmarks, see freshness coverage, and spot where this brand is currently cheapest.
21 stations across the UK.
Stations
Fuel type
21 stations
Page 2 of 2
Showing unleaded prices where available. Unleaded uses E10 where available, then unleaded fallback.
About Costco
- Brand type
- Supermarket
- Stations tracked
- 21 stations
- Rewards
- No rewards listed
- Current price data
- Price data changed 09 Jun 2026
Costco fuel is positioned as a member benefit: prices are often competitive, but access rules and operating hours are different from standard public forecourts.
In practice, Costco stations are tied to warehouse sites, so queue times, pump access windows, and bank-holiday hours depend on the specific location rather than a uniform national schedule.
For trip planning, check the exact warehouse fuel hours before detouring, and remember that membership eligibility and card requirements can affect whether you can actually buy fuel at the pump.
At a glance
- Membership-only fuel proposition tied to Costco warehouse locations.
- Often selected for value-focused planned trips rather than ad-hoc public forecourt use.
- Access and operating windows are more constrained than standard roadside stations.
Fuel and energy options
- Fuel offer is warehouse-linked and practical, with grade range varying by location.
- Layout is usually designed for high throughput, which can still mean queues at peak times.
- Service model is focused on fuelling efficiency rather than broad forecourt amenities.
Loyalty and payment
- Costco fuel access is membership-led: the value proposition is typically lower pump pricing tied to active Costco membership.
- Costco UK states its digital membership card currently cannot be used at petrol stations, so keep the physical membership card available.
- Executive membership rewards can improve total value over time, but fuel savings should still be judged first on live pump price.
Who this brand suits
- Drivers who want to combine fuel with a food or household shop.
- Households that regularly use supermarket loyalty programmes.
- Local routine journeys where convenience matters as much as pump price.
Before you go checks
- Confirm active membership eligibility and keep the required physical card available.
- Check warehouse fuel opening times separately from warehouse shopping hours.
- Plan around quieter windows if you want to avoid peak queue periods.
Known variation note
Promotions, queue times, and forecourt layout can vary substantially between sites under the same brand.
Sources
- Costco UK membership and access guidance
- Costco UK store finder (location details)
- Costco UK digital membership card FAQ
Sources last reviewed 26 Feb 2026.
All-grade averages
Unleaded149.4p/L
Diesel170.9p/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 with UK comparisons.
Premium Unleaded (E5)
161.3p
13.7p (7.8%) below
Unleaded (E10)
149.4p
8p (5.1%) below
Diesel (B7)
170.9p
9.9p (5.5%) below
Premium Diesel (SDV)
Quick summary
Fast read of how Costco is performing right now.
Price position
Below UK average on tracked fuels.
Unleaded is 8.6p below UK average. Diesel is 10.9p below UK average.
Key insight
Costco prices are typically 8.6p below the national average.
Use the comparison and distribution sections below for local context.
Most competitive areas
Best average unleaded value appears in Essex and West Yorkshire.
Regional averages are directional and can change as fresh prices arrive.
Freshness coverage
10% of tracked stations have fresh prices.
Based on 21 stations with recorded unleaded prices.
Coverage snapshot
Strongest county coverage is Greater Manchester.
2 stations in that county; 21 stations tracked overall.
Price comparison
Compare Costco averages to supermarket average and the UK benchmark.
What this means: Unleaded is 4.9p/L below the supermarket average and 8.6p/L below the UK average. Diesel is 8.3p/L below the supermarket average and 10.9p/L below the UK average.
Unleaded
149.4p/L
Supermarket average
-4.9p/L
Below benchmarkAbove benchmark
UK average
-8.6p/L
Below benchmarkAbove benchmark
Diesel
170.9p/L
Supermarket average
-8.3p/L
Below benchmarkAbove benchmark
UK average
-10.9p/L
Below benchmarkAbove benchmark
Price distribution
What this means: Typical unleaded prices span about 3p across the middle of the range, so pricing is moderately spread. Typical diesel prices span about 3p across the middle of the range, so pricing is moderately spread. Both fuels show a similar level of price variation across tracked stations.
Unleaded
149.9p
Diesel
170.9p
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.
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
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 recent or verified prices yet, so averages and comparisons update as new data arrives.
Use postcode search to compare nearby stations and sort by lowest price.