Live prices
Cheapest fuel on the M25
7 service stations on the M25 report through the official UK fuel price scheme, ranked cheapest unleaded first.
The cheapest reported unleaded on the M25 is £8.41 a gallon (184.9p per litre) at Basildon Service Station Ltd near LITTLE WARLEY. M25 services average £8.60 a gallon (189.1p), 16.7p above the national average of 172.4p: filling 50 litres off the motorway typically saves about £8.35.
Prices last refreshed at 6:31pm on 19 September 2026, supplied through the official UK Government fuel price open data scheme.
| Grade | M25 average | National average | Difference |
|---|---|---|---|
| Unleaded (E10) | 189.1p (6) | 172.4p | +16.7p |
| Diesel (B7) | 208.2p (6) | 196.0p | +12.2p |
| Premium Unleaded (E5) | 210.7p (5) | 189.3p | +21.4p |
| Super Diesel (SDV) | 224.5p (5) | 215.1p | +9.4p |
Every M25 service station, cheapest unleaded first
| Station | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|
 Basildon Service Station Ltd (CM13 3EN)24hBasildon Service Station, Little Warley Hall Lane, Little Warley, Brentwood, CM13 3EN | £8.41184.9p | ---- | ---- | ---- | 20h ago |
 Shell Cobham (KT11 3JS)24hM25 Junction 9/10, Cobham, Surrey | £8.63189.9p | £9.18201.9p | £9.77214.9p | £10.00219.9p | 20h ago |
 South Mimms Sf Connect Mwsa (EN6 3QQ)24hST Albans Road, Potters Bar, Hertfordshire | £8.63189.9p | £9.54209.9p | £9.59210.9p | £10.50230.9p | 20h ago |
| Clacket Lane West Connect Mwsa (TN16 2ER)24hM25 Westbound, Westerham, Kent | £8.63189.9p | £9.54209.9p | £9.59210.9p | £10.50230.9p | 20h ago |
| Clacket Lane East Connect Mwsa (TN16 2ER)24hM25 Eastbound, Westerham, Kent | £8.63189.9p | £9.09199.9p | £9.59210.9p | £10.04220.9p | 20h ago |
| Mfg Thurrock (Msa) (RM16 3BG)24hWest Thurrock, Grays, Essex | £8.63189.9p | £9.54209.9p | £9.36205.9p | £10.00219.9p | 20h ago |
 Welcome Break South Mimms Truckstop (EN6 3NE)24hST. Albans Road, Potters Bar, South Mimms, Hertforshire | ---- | £9.91217.9p | ---- | ---- | 20h ago |
Prices are supplied through the official UK Government fuel price open data scheme (Open Government Licence v3.0). Road matching uses motorway geometry from OpenStreetMap, © OpenStreetMap contributors (ODbL), and the station's own published details.
Leaving at a junction?
Prices a mile or two off the M25 are usually far cheaper. Search any postcode along your route.
More motorways
All motorway services pricesQuestions about M25 fuel
- Where is the cheapest fuel on the M25?
- The cheapest reported unleaded at a M25 service station is £8.41 a gallon (184.9p per litre) at Basildon Service Station Ltd near LITTLE WARLEY. Prices were last refreshed at 6:31pm on 19 September 2026 from official UK Government fuel price data.
- How much more expensive is fuel on the M25?
- Across the 6 M25 service stations currently reporting unleaded, the average is £8.60 a gallon (189.1p per litre) against a national average of £7.84 (172.4p): 16.7p per litre more, about £8.35 on a 50-litre fill. Leaving at a junction usually beats filling at the services.
- Which stations count as M25 services?
- Stations flagged as motorway services in the official UK fuel price scheme, matched to the M25 by its road geometry (OpenStreetMap) or by the road named in the station's own published details.