Live prices
Cheapest super diesel in Carmarthen
3 stations reporting super diesel, ranked cheapest first.
The cheapest reported super diesel in Carmarthen is 177.5p per litre at MURCO, GWALIA GARAGE, RHYDARGAEAU, CARMARTHEN (SA32 7DR). The average across 3 forecourts currently reporting this grade is 190.0p per litre, so choosing the cheapest rather than an average-priced forecourt saves about £6.25 on a 50-litre fill. That local average is 7.6p per litre below the UK average of 197.6p.
The average is unchanged since yesterday. The average has risen 11.0p per litre since last week.
Prices last refreshed at 8:02pm on 30 July 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
| Station | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|
| MURCO (SA32 7DR)GWALIA GARAGE, RHYDARGAEAU, CARMARTHEN | 156.9p | 173.9p | 162.5p | 177.5p | 20 mins ago |
| MURCO (SA31 2EY)TANERDY GARAGE, TANERDY , CARMARTHEN | 157.9p | 172.9p | 162.5p | 177.5p | 20 mins ago |
| VALERO (SA33 5DT)24hLYSONNEN ROAD, CARMARTHEN, CARMARTHEN, CARMARTHENSHIRE | 159.9p | 179.9p | 191.9p | 214.9p | 20 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 super diesel appear here.
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Questions about super diesel in Carmarthen
- Where is the cheapest super diesel in Carmarthen?
- The cheapest reported super diesel in Carmarthen is 177.5p per litre at MURCO, GWALIA GARAGE, RHYDARGAEAU, CARMARTHEN (SA32 7DR). The average across 3 forecourts reporting this grade is 190.0p per litre. Prices were last refreshed at 8:02pm on 30 July 2026 from official UK Government fuel price data.
- How many stations in Carmarthen sell super diesel?
- 3 forecourts in Carmarthen currently report a price for super diesel through the official UK fuel price open data scheme. Stations that do not sell or report this grade are not counted.