Price position
Below UK average on tracked fuels.
Unleaded is 7.4p below UK average. Diesel is 8.8p below UK average.
Supermarket
Compare Costco unleaded and diesel averages versus peer and UK benchmarks, see freshness coverage, and spot where this brand is currently cheapest.
20 stations across the UK.
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.
Promotions, queue times, and forecourt layout can vary substantially between sites under the same brand.
Sources last reviewed 26 Feb 2026.
Across E10/E5 for unleaded and B7/Diesel for diesel.
Last updated 09 Mar 2026.
Enter a postcode to find the lowest prices nearby.
Find cheap petrol near youAverage prices by fuel type with UK comparisons.
All-grade averages use recorded E10/E5 and B7/Diesel prices. Fuel cards compare each grade against UK averages; availability varies by brand.
Fast read of how Costco is performing right now.
Price position
Below UK average on tracked fuels.
Unleaded is 7.4p below UK average. Diesel is 8.8p below UK average.
Key insight
Costco prices are typically 7.4p below the national average.
Use the comparison and distribution sections below for local context.
Most competitive areas
Best average unleaded value appears in Merseyside and West Midlands.
Regional averages are directional and can change as fresh prices arrive.
Freshness coverage
0% of tracked stations have fresh prices.
Based on 20 stations with recorded unleaded prices.
Coverage snapshot
Strongest county coverage is Greater Manchester.
2 stations in that county; 20 stations tracked overall.
Compare Costco averages to supermarket average and the national benchmark.
Brand vs supermarket average and national average.
Brand vs supermarket average and national average.
Averages use the latest unleaded price available (E10, then E5, then unleaded).
A quick read on price freshness, coverage, and facilities for Costco.
Based on 20 stations with recorded unleaded prices.
Top counties by station count.
Lowest average unleaded prices for this brand.
Based on 20 stations with reported facilities.
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.
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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.