Live prices
Cheapest unleaded petrol (E10) in Merthyr Tydfil
3 stations reporting unleaded petrol (E10), ranked cheapest first.
The cheapest reported unleaded petrol (E10) in Merthyr Tydfil is £7.86 a gallon (172.9p per litre) at Asda, Dowlais Top, Merthyr Tydfil (CF48 2YF). The average across 3 forecourts currently reporting this grade is £7.94 a gallon (174.6p 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 2.1p per litre above the UK average of 172.5p.
The average has risen 0.4p per litre since yesterday. The average has risen 4.0p per litre since last week.
Prices last refreshed at 4:01pm on 18 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
| Station | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|
 Asda Merthyr Tydfil Superstore (CF48 2YF)Dowlais Top, Merthyr Tydfil | £7.86172.9p | £9.00197.9p | ---- | ---- | 18 Sept 2026, 15:01 |
 Eg Merthyr Tydfil Pfs (CF47 8EB)24h3 - 3A Lower High Street, Merthyr Tydfil, Glamorgan | £7.91173.9p | £9.04198.9p | £8.86194.9p | ---- | 18 Sept 2026, 15:01 |
 Rontec Dowlais (CF48 3DA)24hNew Road, Merthyr Tydfil, Mid Glamorgan | £8.04176.9p | £9.18201.9p | £8.91195.9p | £10.04220.9p | 18 Sept 2026, 15:01 |
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 unleaded petrol (E10) appear here.
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Questions about unleaded petrol (E10) in Merthyr Tydfil
- Where is the cheapest unleaded petrol (E10) in Merthyr Tydfil?
- The cheapest reported unleaded petrol (E10) in Merthyr Tydfil is 172.9p per litre at Asda, Dowlais Top, Merthyr Tydfil (CF48 2YF). The average across 3 forecourts reporting this grade is 174.6p per litre. Prices were last refreshed at 4:01pm on 18 September 2026 from official UK Government fuel price data.
- How many stations in Merthyr Tydfil sell unleaded petrol (E10)?
- 3 forecourts in Merthyr Tydfil currently report a price for unleaded petrol (E10) through the official UK fuel price open data scheme. Stations that do not sell or report this grade are not counted.