Cheapest fuel in Merthyr Tydfil
We hold recently reported prices for 4 forecourts in Merthyr Tydfil. Every price below carries the date the retailer reported it, so you can see how recent it is before you drive.
Cheapest by fuel type
The lowest reported price for each fuel across Merthyr Tydfil, and where it was reported.
E10 — standard petrol
Unleaded
173.9p
Treharris Service StationCF46 5EY
Price from 18 Oct 2026E5 — premium petrol
Super unleaded
196.9p
Rontec DowlaisCF48 3DA
Price from 18 Oct 2026B7 — standard diesel
Diesel
198.9p
Asda Merthyr Tydfil SuperstoreCF48 2YF
Price from 18 Oct 2026V-Power / Ultimate
Premium diesel
217.9p
Treharris Service StationCF46 5EY
Price from 18 Oct 2026Is fuel dear in Merthyr Tydfil?
The Merthyr Tydfil figure is the average of the forecourts listed on this page. The UK figure is national — it is not limited to Merthyr Tydfil — and it is taken over the 6,155 forecourts that reported a price in the most recent GOV.UK snapshot, out of the 8,136 forecourts we currently list. That is what it was calculated from, rather than every forecourt in the country.
| Fuel | Merthyr Tydfil avg | UK avg | Difference |
|---|---|---|---|
| Unleaded4 forecourts | 176.4p | 174.0p | 2.4p dearer |
| Super unleaded2 forecourts | 197.4p | 192.3p | 5.1p dearer |
| Diesel4 forecourts | 200.4p | 199.0p | 1.4p dearer |
| Premium diesel2 forecourts | 218.4p | 218.8p | 0.4p cheaper |
Within Merthyr Tydfil, super unleaded runs from 196.9p at Rontec Dowlais to 197.9p at Eg Merthyr Tydfil Pfs — about £0.50 on a 50-litre fill, if both prices still stand.
Merthyr Tydfil forecourts, cheapest super unleaded first
2 of 4 Merthyr Tydfil forecourts report super unleaded. The figure under each price is the difference from the UK average of 192.3p.
Rontec Dowlais
BrandedNEW ROAD, MERTHYR TYDFIL, MID GLAMORGANCF48 3DA
196.9p
+4.6p vs UK
Eg Merthyr Tydfil Pfs
Branded3 - 3A LOWER HIGH STREET, MERTHYR TYDFIL, GLAMORGANCF47 8EB
197.9p
+5.6p vs UKWhere these prices come from
Prices are published by the retailers themselves under the government's fuel price transparency scheme and are shown in pence per litre. A forecourt only appears here once it has actually reported, and we show its reported date rather than assuming today's price. Prices can change between a retailer reporting and you arriving, so always check the pump.
Common questions about fuel in Merthyr Tydfil
Every answer below is worked out from the forecourt prices on this page.
Where is the cheapest super unleaded in Merthyr Tydfil?
Rontec Dowlais, CF48 3DA, at 196.9p a litre. That is the lowest super unleaded price of the 2 Merthyr Tydfil forecourts reporting it. The retailer reported it today (18 Oct 2026). Prices can change between a retailer reporting and you arriving, so check the pump.
How many petrol stations in Merthyr Tydfil report their fuel prices?
We hold a recently reported price for 4 forecourts in Merthyr Tydfil, published by the retailers themselves under the government's fuel price transparency scheme. That is what has reported recently enough for us to list, rather than a count of every forecourt in Merthyr Tydfil — a site that stops reporting drops out, and one that has never reported never appears. Not every forecourt sells every fuel: 4 quote unleaded, 2 quote super unleaded, 4 quote diesel, 2 quote premium diesel. All 2 of the forecourts quoting super unleaded are ranked on this page.
Is super unleaded cheaper in Merthyr Tydfil than the UK average?
Merthyr Tydfil averages 197.4p for super unleaded across the 2 forecourts quoting it, which is 5.1p a litre dearer than the UK average of 192.3p. The UK figure is taken over the 6,155 forecourts that reported a price in the most recent GOV.UK snapshot, out of the 8,136 forecourts we currently list, so it is not limited to Merthyr Tydfil.
How up to date are these Merthyr Tydfil fuel prices?
Every price on this page was reported today. Retailers report into the scheme themselves, anywhere from daily to occasionally, so no price here is a live pump price — each one is shown with the date it was reported.
How much can I save by shopping around for super unleaded in Merthyr Tydfil?
Super unleaded runs from 196.9p to 197.9p across the 2 Merthyr Tydfil forecourts quoting it — a gap of 1.0p a litre, or about £0.50 on a 50-litre fill, if both prices still stand when you get there.
Fuel prices near Merthyr Tydfil
The nearest towns to Merthyr Tydfil with at least 5 reporting forecourts, up to 50 miles away. Distances are straight-line, from the middle of the Merthyr Tydfil forecourts listed above to that town's nearest one.
Fuel prices in Caerphilly
6 forecourts · about 8.7 miles away
Fuel prices in Pontypridd
5 forecourts · about 11 miles away
Fuel prices in Neath
8 forecourts · about 12 miles away
Fuel prices in Cardiff
29 forecourts · about 14 miles away
Fuel prices in Newport
24 forecourts · about 14 miles away
Fuel prices in Bridgend
16 forecourts · about 17 miles away
Fuel prices in Swansea
26 forecourts · about 17 miles away
Fuel prices in Hereford
17 forecourts · about 21 miles away
Garages near Merthyr Tydfil
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