Petrol and Diesel Prices in Merthyr Tydfil
Compare petrol and diesel prices at 3 petrol stations in Merthyr Tydfil, GLAMORGAN. Prices last updated 14:44 26/09/2026.
Petrol (E10)
174.9p
at ASDA MERTHYR TYDFIL SUPERSTORE
Diesel (B7)
199.9p
at ASDA MERTHYR TYDFIL SUPERSTORE
Super Unleaded (E5)
195.9p
at RONTEC DOWLAIS
Premium Diesel
222.9p
at RONTEC DOWLAIS
Unleaded (E10)
177.0p avg
3.0p above UK average (174.0p)
Diesel
202.0p avg
3.0p above UK average (199.0p)
Price History in Merthyr Tydfil
See how fuel prices have changed over time with interactive charts and analysis.
Click any column header to sort. Prices shown in pence per litre.
Stations within a few miles of Merthyr Tydfil — worth the short drive for cheaper fuel.
Merthyr Tydfil (GLAMORGAN) currently has 3 petrol stations tracked by FuelCosts.co.uk. The average unleaded petrol price in Merthyr Tydfil today is 177.0p per litre, which is 3.0p above the UK national average of 174.0p.
The cheapest unleaded petrol in Merthyr Tydfil right now is 174.9p at ASDA MERTHYR TYDFIL SUPERSTORE. The cheapest diesel is 199.9p at ASDA MERTHYR TYDFIL SUPERSTORE.
Fuel prices in Merthyr Tydfil are sourced from the UK Government's CMA Fuel Finder scheme and updated every 4 minutes. We recommend comparing prices before filling up, as prices can vary significantly between stations even within the same town.