Live prices
Cheapest petrol and diesel near SA33
5 forecourts within 5 miles of the centre of the SA33 postcode district, 5 of them inside SA33 itself.
The cheapest reported unleaded petrol (E10) within 5 miles of the centre of SA33 is £7.68 a gallon (168.9p per litre) at Murco, C K's Supermarket, Old ST. Clears Road, Johnstown, Carmarthen (SA31 3HL). The average across 5 forecourts currently reporting this grade is £7.80 a gallon (171.5p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £1.30 on a 50-litre fill. That local average is 0.5p per litre below the UK average of 172.0p.
The average has risen 0.6p per litre since yesterday. The average has risen 3.8p per litre since last week.
Prices last refreshed at 6:31pm on 17 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
Unleaded Prices
Unleaded (E10)
- Highest
- £7.86/gal172.9p/L
- Average
- £7.80/gal171.5p/L
- Lowest
- £7.68/gal168.9p/L
Diesel Prices
Diesel (B7)
- Highest
- £8.91/gal195.9p/L
- Average
- £8.88/gal195.3p/L
- Lowest
- £8.77/gal192.9p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £9.09/gal199.9p/L
- Average
- £8.97/gal197.4p/L
- Lowest
- £8.63/gal189.9p/L
Super Diesel Prices
Super Diesel (SDV)
- Highest
- £10.00/gal219.9p/L
- Average
- £9.95/gal218.9p/L
- Lowest
- £9.82/gal215.9p/L
Every station near SA33, cheapest unleaded first
| Station | Distance | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|---|
 Cks Supermarket (SA31 3HL)C K's Supermarket, Old ST. Clears Road, Johnstown, Carmarthen | 4.8 miles | £7.68168.9p | £8.77192.9p | ---- | ---- | 17 Sept 2026, 17:31 |
 Ascona Forge Filling Station (SA33 4NA)24hA40 West, Carmarthen Road, Carmarthen Road, Carmarthenshire | 2.1 miles | £7.81171.9p | £8.91195.9p | £9.09199.9p | £10.00219.9p | 17 Sept 2026, 17:31 |
| Ascona Ivy Service Station (SA33 4JP)Tenby Road, ST Clears, ST Clears, Carmarthenshire | 3.9 miles | £7.81171.9p | £8.91195.9p | £9.09199.9p | £10.00219.9p | 17 Sept 2026, 17:31 |
| Ascona Tenby Road Service Station (SA33 5DT)24hLysonnen Road, Carmarthen, Carmarthen, Carmarthenshire | 2.6 miles | £7.81171.9p | £8.91195.9p | £9.09199.9p | £10.00219.9p | 17 Sept 2026, 17:31 |
 Mfg St Clears (SA33 4JW)24hST Clears Roundabout, Tenby Road, ST Clears, Carmarthen | 3.5 miles | £7.86172.9p | £8.91195.9p | £8.63189.9p | £9.82215.9p | 17 Sept 2026, 17:31 |
The market shown is a fixed 5-mile radius from the centre of the SA33 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.
Search a full postcode
Ask the fuel analyst
Answers come straight from recorded official price data, refreshed every 30 minutes.
By fuel grade near SA33
Worth the drive?
Filling 50 litres at the cheapest reported station rather than an average-priced one saves about £1.30 today.
Questions about fuel prices near SA33
- Where is the cheapest petrol near SA33?
- The cheapest reported unleaded petrol (E10) within 5 miles of the centre of SA33 is 168.9p per litre at Murco, C K's Supermarket, Old ST. Clears Road, Johnstown, Carmarthen (SA31 3HL). The local average is 171.5p across 5 forecourts reporting this grade. Prices were last refreshed at 6:31pm on 17 September 2026 from official UK Government fuel price data.
- Where is the cheapest diesel near SA33?
- The cheapest reported diesel (B7) within 5 miles of the centre of SA33 is 192.9p per litre at Murco, C K's Supermarket, Old ST. Clears Road, Johnstown, Carmarthen (SA31 3HL). The local average is 195.3p per litre.
- How often are fuel prices in SA33 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.