Live prices
Cheapest diesel (B7) near SA31
10 stations reporting diesel (B7), ranked cheapest first.
The cheapest reported diesel (B7) within 5 miles of the centre of SA31 is £8.81 a gallon (193.9p per litre) at Murco, Gwalia Garage, Rhydargaeau, Carmarthen (SA32 7DR). The average across 10 forecourts currently reporting this grade is £8.91 a gallon (196.0p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £1.05 on a 50-litre fill. That local average is 2.4p per litre below the UK average of 198.4p.
The average has risen 0.1p per litre since yesterday. The average has fallen 0.5p per litre since last week.
Prices last refreshed at 4:04am on 5 November 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
| Station | Distance | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|---|
 Tanerdy Garage (SA31 2EY)Tanerdy Garage, Tanerdy, Carmarthen | 0.9 miles | £7.54165.9p | £8.81193.9p | £8.16179.5p | £9.34205.5p | 55 mins ago |
| Gwalia Garage (SA32 7DR)Gwalia Garage, Rhydargaeau, Carmarthen | 3.8 miles | £7.54165.9p | £8.81193.9p | £8.11178.5p | £9.39206.5p | 55 mins ago |
 Mfg Morrisons Carmarthen (SA31 2NF)24hParc Pensarn, Carmarthen, Carmarthenshire | 0.8 miles | £7.63167.9p | £8.86194.9p | £8.63189.9p | ---- | 55 mins ago |
 Vst Towy Services Station (SA31 2BN)24hTowy Service Station, The Bridge, Caerfyrddin, SA31 2BN, Caerfyrddin | 0.3 miles | £7.63167.9p | £8.91195.9p | £8.63189.9p | ---- | 55 mins ago |
 Carmarthen Extra - Petrol Filling Station (SA31 3AX)24hTesco Stores, Lon Morfa, Caerfyrddin | 0.5 miles | £7.63167.9p | £8.91195.9p | £8.09177.9p | ---- | 55 mins ago |
| Derwydd Services (SA33 6TP)Derwydd Garage, Cynwyl Elfed, Carmarthen, SA33 6TP, Carmarthen | 4.7 miles | £7.59166.9p | £8.91195.9p | £8.31182.9p | ---- | 55 mins ago |
| Cks Supermarket (SA31 3HL)C K's Supermarket, Old ST. Clears Road, Johnstown, Carmarthen | 0.9 miles | £7.68168.9p | £8.95196.9p | ---- | ---- | 55 mins ago |
 Ascona Tenby Road Service Station (SA33 5DT)24hLysonnen Road, Carmarthen, Carmarthen, Carmarthenshire | 3.1 miles | £7.63167.9p | £8.95196.9p | £9.09199.9p | £10.00219.9p | 55 mins ago |
| Oil 4 Wales Ltd Nantycaws (SA32 8BG)Nantycaws Filling Station Ltd, Llanddarog Road, Caerfyrddin, SA32 8BG, Caerfyrddin | 4 miles | £7.72169.9p | £8.95196.9p | ---- | ---- | 55 mins ago |
 Asda White Mill Express Petrol (SA32 7EN)A40, Carmarthen, Carmarthen | 3.3 miles | £7.81171.9p | £9.04198.9p | ---- | ---- | 55 mins ago |
Prices are supplied through the official UK Government fuel price open data scheme (Open Government Licence v3.0) and checked every 30 minutes. Only stations reporting diesel (B7) appear here.
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Questions about diesel (B7) near SA31
- Where is the cheapest diesel (B7) near SA31?
- The cheapest reported diesel (B7) near SA31 is 193.9p per litre at Murco, Gwalia Garage, Rhydargaeau, Carmarthen (SA32 7DR). The average across 10 forecourts reporting this grade is 196.0p per litre. Prices were last refreshed at 4:04am on 5 November 2026 from official UK Government fuel price data.
- How many stations near SA31 sell diesel (B7)?
- 10 forecourts near SA31 currently report a price for diesel (B7) through the official UK fuel price open data scheme. Stations that do not sell or report this grade are not counted.