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Check Supermarkets First
Asda, Tesco, Morrisons, and Sainsbury's forecourts are generally 3pā6p cheaper per litre than branded oil company stations, saving you around Ā£3āĀ£4 every fill-up.
Live UK Diesel Price Tracker Ā· B7 & Premium
Compare live B7 diesel prices across supermarkets, motorway services, and local stations. Enter your postcode or use GPS to locate the cheapest diesel pumps near you.
Enter your UK postcode to compare nearby petrol and diesel prices.
Official forecourt price disclosures are updated daily across supermarket and independent stations. Use these benchmarks to ensure you are getting a fair deal, or compare them against the broader 90-day UK national price trends to see how prices are shifting across the country.
Standard petrol
Standard diesel
High octane
Cetane enhanced
Asda, Tesco, Morrisons, and Sainsbury's forecourts are generally 3pā6p cheaper per litre than branded oil company stations, saving you around Ā£3āĀ£4 every fill-up.
Motorway service areas often charge 20pā30p more per litre for diesel. Leaving the motorway by just 1 or 2 miles to a nearby town forecourt can save over Ā£15 on a full tank.
If you live in a rural area or near a busy city centre, expanding your search radius to 5 or 10 miles frequently reveals cheaper arterial forecourts along your commute.
Want to know if diesel prices are trending downwards before you fill up? Check Kermo's UK Fuel Price Trends Tracker to see live 90-day averages, daily price changes, and supermarket price comparisons.
Use Kermo's live diesel finder above. Type in your postcode or tap 'Use my location' (GPS). Kermo scans all nearby forecourts within your chosen radius (1 to 10 miles) and automatically displays the lowest B7 diesel prices first.
Standard UK diesel contains up to 7% renewable biodiesel (labelled B7). Premium diesels (like Shell V-Power Diesel or BP Ultimate Diesel) include specialised cleaning additives, corrosion inhibitors, and higher cetane ratings designed to reduce engine deposits, but typically cost 10pā18p more per litre.
Although both fuels carry the same flat fuel duty (52.95p per litre plus 20% VAT), diesel costs more to refine and the UK is a net importer of refined diesel. Additionally, higher commercial and industrial demand keeps global wholesale diesel prices elevated compared to petrol.
Asda and Morrisons often battle for the lowest supermarket diesel prices, closely followed by Tesco and Sainsbury's. However, supermarket prices can vary significantly between different regions, so checking local station prices before you drive is the most reliable way to save.
You can visit Kermo's UK Fuel Price Trends page to view 90-day national average price trajectories for diesel and unleaded petrol, helping you decide whether to fill up today or wait.
Find cheap petrol and diesel forecourts across major UK cities, metropolitan regions, and commuter corridors.
Fuel guide
Learn how postcode, fuel type and search radius affect a fuel price comparison.
Read the fuel guide