Petrol and diesel prices in SA31
5 stations · updated 22 October 2026
Unleaded (E10)
£1.713
Low 1.689 · High 1.739
UK average £1.737 · 2.4p below
Diesel
£1.967
Low 1.949 · High 1.989
UK average £1.988 · 2.1p below
Super unleaded (E5)
£1.814
Low 1.799 · High 1.829
UK average £1.900 · 8.6p below
All stations in SA31
| Station | E10 | Diesel | E5 |
|---|---|---|---|
| Tanerdy GarageTanerdy Garage, Tanerdy SA31 2EY | 1.689 | 1.949 | — |
| Vst Towy Services StationTowy Service Station, The Bridge SA31 2BN | 1.699 | 1.979 | 1.799 |
| MFG Morrisons CarmarthenParc Pensarn SA31 2NF | 1.709 | 1.949 | — |
| Carmarthen Extra - Petrol Filling StationTesco Stores, Lon Morfa SA31 3AX | 1.729 | 1.969 | 1.829 |
| CKs SupermarketC K's Supermarket, Old St. Clears Road, Johnstown SA31 3HL | 1.739 | 1.989 | — |
Prices are reported by the stations; a dash means no price reported in the last 21 days.
Towns in SA31
Nearby SA postcode districts
FAQ
How much is petrol in SA31 today?
Unleaded (E10) averages £1.713 a litre across SA31, from £1.689 to £1.739.
How much is diesel in SA31 today?
Diesel averages £1.967 a litre across SA31, from £1.949 to £1.989.
Where is the cheapest petrol station in SA31?
The table on this page lists every station in SA31 with a current price, cheapest first.
Source: UK Government Fuel Finder scheme (Department for Energy Security and Net Zero / Competition and Markets Authority), Open Government Licence v3.0. Prices are indicative and may have changed since they were reported; always check the price at the pump.