Live prices
Cheapest petrol and diesel near SA31
10 forecourts within 5 miles of the centre of the SA31 postcode district, 5 of them inside SA31 itself.
The cheapest reported unleaded petrol (E10) within 5 miles of the centre of SA31 is 156.9p per litre at MURCO, DERWYDD GARAGE, CYNWYL ELFED, CARMARTHEN, SA33 6TP, CARMARTHEN (SA33 6TP). The average across 10 forecourts currently reporting this grade is 158.6p per litre, so choosing the cheapest rather than an average-priced forecourt saves about £0.85 on a 50-litre fill. That local average is 1.1p per litre below the UK average of 159.7p.
The average has risen 0.1p per litre since yesterday. The average has risen 4.9p per litre since last week.
Prices last refreshed at 5:02pm on 30 July 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
Unleaded Prices
Unleaded (E10)
- Highest
- 160.9p/lapprox. £7.31/gal
- Average
- 158.6p/lapprox. £7.21/gal
- Lowest
- 156.9p/lapprox. £7.13/gal
Diesel Prices
Diesel (B7)
- Highest
- 179.9p/lapprox. £8.18/gal
- Average
- 176.6p/lapprox. £8.03/gal
- Lowest
- 172.9p/lapprox. £7.86/gal
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- 191.9p/lapprox. £8.72/gal
- Average
- 172.9p/lapprox. £7.86/gal
- Lowest
- 162.5p/lapprox. £7.39/gal
Super Diesel Prices
Super Diesel (SDV)
- Highest
- 214.9p/lapprox. £9.77/gal
- Average
- 190.0p/lapprox. £8.64/gal
- Lowest
- 177.5p/lapprox. £8.07/gal
Every station near SA31, cheapest unleaded first
| Station | Distance | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|---|
| MURCO (SA33 6TP)DERWYDD GARAGE, CYNWYL ELFED, CARMARTHEN, SA33 6TP, CARMARTHEN | 4.7 mi | 156.9p | 174.9p | 166.9p | -- | 28 mins ago |
| MURCO (SA32 7DR)GWALIA GARAGE, RHYDARGAEAU, CARMARTHEN | 3.8 mi | 156.9p | 173.9p | 162.5p | 177.5p | 28 mins ago |
| MURCO (SA31 3HL)C K'S SUPERMARKET, OLD ST. CLEARS ROAD, JOHNSTOWN, CARMARTHEN | 0.9 mi | 156.9p | 176.9p | -- | -- | 28 mins ago |
| MURCO (SA31 2EY)TANERDY GARAGE, TANERDY , CARMARTHEN | 0.9 mi | 157.9p | 172.9p | 162.5p | 177.5p | 28 mins ago |
| TEXACO (SA31 2BN)TOWY SERVICE STATION, THE BRIDGE, CAERFYRDDIN, SA31 2BN, CAERFYRDDIN | 0.3 mi | 157.9p | 174.9p | 179.9p | -- | 28 mins ago |
| OIL 4 WALES LTD (SA32 8BG)NANTYCAWS FILLING STATION LTD, LLANDDAROG ROAD, CAERFYRDDIN, SA32 8BG, CAERFYRDDIN | 4.0 mi | 158.9p | 179.9p | -- | -- | 28 mins ago |
| ESSO (SA32 7EN)A40, CARMARTHEN, CARMARTHEN | 3.3 mi | 159.9p | 179.9p | -- | -- | 28 mins ago |
| MORRISONS (SA31 2NF)PARC PENSARN, CARMARTHEN, CARMARTHENSHIRE | 0.8 mi | 159.9p | 175.9p | 175.9p | -- | 28 mins ago |
| VALERO (SA33 5DT)LYSONNEN ROAD, CARMARTHEN, CARMARTHEN, CARMARTHENSHIRE | 3.1 mi | 159.9p | 179.9p | 191.9p | 214.9p | 28 mins ago |
| TESCO (SA31 3AX)TESCO STORES, LON MORFA, CAERFYRDDIN | 0.5 mi | 160.9p | 176.9p | 170.9p | -- | 28 mins ago |
The market shown is a fixed 5-mile radius from the centre of the SA31 postcode district. Not every station reports every fuel grade, so grade averages state how many stations they cover. Prices are supplied through the official UK Government fuel price open data scheme (Open Government Licence v3.0) and checked every 30 minutes.
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Answers come straight from recorded official price data, refreshed every 30 minutes.
By fuel grade near SA31
Worth the drive?
Filling 50 litres at the cheapest reported station rather than an average-priced one saves about £0.85 today.
Questions about fuel prices near SA31
- Where is the cheapest petrol near SA31?
- The cheapest reported unleaded petrol (E10) within 5 miles of the centre of SA31 is 156.9p per litre at MURCO, DERWYDD GARAGE, CYNWYL ELFED, CARMARTHEN, SA33 6TP, CARMARTHEN (SA33 6TP). The local average is 158.6p across 10 forecourts reporting this grade. Prices were last refreshed at 5:02pm on 30 July 2026 from official UK Government fuel price data.
- Where is the cheapest diesel near SA31?
- The cheapest reported diesel (B7) within 5 miles of the centre of SA31 is 172.9p per litre at MURCO, TANERDY GARAGE, TANERDY , CARMARTHEN (SA31 2EY). The local average is 176.6p per litre.
- How often are fuel prices in SA31 updated?
- Prices are supplied by fuel retailers through the official UK Government fuel price open data scheme and checked every 30 minutes. Each station row shows when its price was last recorded.