Live prices · 5 forecourts
Petrol and diesel prices in Merthyr Tydfil
Prices at 5 forecourts in Merthyr Tydfil, as reported to the UK Government's Fuel Finder scheme. The cheapest unleaded today is 166.9p and the cheapest diesel 196.9p, both at Asda Merthyr Tydfil Superstore.
Cheapest in Merthyr Tydfil now
Live- Unleaded
- Diesel
- Super
- Prem. diesel
Today's prices in Merthyr Tydfil
Averages of every forecourt here with a price reported in the last 30 days, compared with the UK.
Unleaded (E10)
169.5paverage
£7.71 a gallon
0.1p above UK average
Cheapest 166.9p at Asda Merthyr Tydfil Superstorereported 6 Nov 2026, 16:21
5 forecourts with a recent price
Diesel (B7)
197.9paverage
£9.00 a gallon
0.2p above UK average
Cheapest 196.9p at Asda Merthyr Tydfil Superstorereported 5 Nov 2026, 22:14
5 forecourts with a recent price
Super unleaded (E5)
190.9paverage
£8.68 a gallon
3.6p above UK average
Cheapest 186.9p at EG Merthyr Tydfil Pfsreported 5 Nov 2026, 12:00
3 forecourts with a recent price
Super diesel (B7)
217.6paverage
£9.89 a gallon
1.4p above UK average
Cheapest 215.9p at Treharris Service Stationreported 4 Nov 2026, 10:38
3 forecourts with a recent price
Every forecourt in Merthyr Tydfil, cheapest first
Sort by any fuel. Each price shows when the forecourt reported it.
- Asda Merthyr Tydfil Superstore
Asda · CF48 2YF · Dowlais Top
- Unleaded
- 166.9p6 Nov 2026, 16:21
- Diesel
- 196.9p5 Nov 2026, 22:14
- Super
- —
- Prem. diesel
- —
- EG Merthyr Tydfil Pfs
EG On The Move · CF47 8EB · 3 - 3A Lower High Street
- Unleaded
- 166.9p5 Nov 2026, 12:00
- Diesel
- 196.9p2 Nov 2026, 12:55
- Super
- 186.9p5 Nov 2026, 12:00
- Prem. diesel
- —
24 hours
- Treharris Service Station
Gulf · CF46 5EY · Cardiff Road
- Unleaded
- 166.9p30 Oct 2026, 08:57
- Diesel
- 197.9p4 Nov 2026, 10:38
- Super
- —
- Prem. diesel
- 215.9p4 Nov 2026, 10:38
- Rontec Dowlais
Esso · CF48 3DA · New Road
- Unleaded
- 171.9p2 Nov 2026, 10:24
- Diesel
- 197.9p2 Nov 2026, 10:24
- Super
- 190.9p2 Nov 2026, 10:24
- Prem. diesel
- 216.9p2 Nov 2026, 10:24
24 hours
- Valley Heights Service Station
Texaco · CF48 2YE · Valley Heights Filling Station
- Unleaded
- 174.9p5 Nov 2026, 09:44
- Diesel
- 199.9p5 Nov 2026, 09:44
- Super
- 194.9p5 Nov 2026, 09:44
- Prem. diesel
- 219.9p5 Nov 2026, 09:45
24 hoursAdBlue pumpsLPG
| Forecourt | ||||
|---|---|---|---|---|
Asda Merthyr Tydfil Superstore Asda · CF48 2YF · Dowlais Top | 166.9p (cheapest)6 Nov 2026, 16:21 | 196.9p (cheapest)5 Nov 2026, 22:14 | — | — |
| 166.9p (cheapest)5 Nov 2026, 12:00 | 196.9p (cheapest)2 Nov 2026, 12:55 | 186.9p (cheapest)5 Nov 2026, 12:00 | — | |
Treharris Service Station Gulf · CF46 5EY · Cardiff Road | 166.9p (cheapest)30 Oct 2026, 08:57 | 197.9p4 Nov 2026, 10:38 | — | 215.9p (cheapest)4 Nov 2026, 10:38 |
| 171.9p2 Nov 2026, 10:24 | 197.9p2 Nov 2026, 10:24 | 190.9p2 Nov 2026, 10:24 | 216.9p2 Nov 2026, 10:24 | |
Valley Heights Service Station Texaco · CF48 2YE · Valley Heights Filling Station 24 hoursAdBlue pumpsLPG | 174.9p5 Nov 2026, 09:44 | 199.9p5 Nov 2026, 09:44 | 194.9p5 Nov 2026, 09:44 | 219.9p5 Nov 2026, 09:45 |
What the prices say in Merthyr Tydfil
Unleaded in Merthyr Tydfil runs from 166.9p to 174.9p — 8.0p apart, or £4.40 on a 55-litre tank.
The average unleaded price here is 0.1p above the UK average, and diesel is 0.2p above.
In the last 7 days 5 forecourts here changed an unleaded or diesel price 16 times: 16 cuts and 0 rises.
3 forecourts sell fuel 24 hours a day. 24-hour petrol stations near you
1 forecourt has AdBlue at the pump, and 1 has LPG pumps. AdBlue pumps near you · LPG near you
Merthyr Tydfil against the UK, day by day
Daily averages from the same forecourts and the same freshness rules as the table.
Unleaded
| Day | Merthyr Tydfil | UK |
|---|---|---|
| 27 Oct | 174.1p | 172.8p |
| 28 Oct | 174.1p | 172.6p |
| 29 Oct | 173.3p | 172.3p |
| 30 Oct | 173.1p | 171.9p |
| 31 Oct | 173.1p | 171.8p |
| 1 Nov | 173.1p | 171.7p |
| 2 Nov | 171.7p | 171.4p |
| 3 Nov | 171.3p | 171.0p |
| 4 Nov | 170.9p | 170.7p |
| 5 Nov | 169.7p | 170.2p |
| 6 Nov | 169.5p | 169.7p |
| 7 Nov | 169.5p | 169.5p |
| 8 Nov | 169.5p | 169.4p |
| 9 Nov | 169.5p | 169.4p |
Diesel
| Day | Merthyr Tydfil | UK |
|---|---|---|
| 27 Oct | 199.4p | 198.7p |
| 28 Oct | 199.4p | 198.6p |
| 29 Oct | 198.9p | 198.6p |
| 30 Oct | 198.9p | 198.4p |
| 31 Oct | 198.9p | 198.4p |
| 1 Nov | 198.9p | 198.4p |
| 2 Nov | 199.1p | 198.4p |
| 3 Nov | 199.1p | 198.3p |
| 4 Nov | 198.7p | 198.2p |
| 5 Nov | 197.9p | 198.0p |
| 6 Nov | 197.9p | 197.9p |
| 7 Nov | 197.9p | 197.8p |
| 8 Nov | 197.9p | 197.7p |
| 9 Nov | 197.9p | 197.7p |
Across Wales as a whole, unleaded averages 168.8p and diesel 197.6p.
Near Merthyr Tydfil
- Blaenau Gwent9 forecourts · 6.7 miles awayUnleaded 168.2pDiesel 197.4p
- Caerphilly22 forecourts · 8.8 miles awayUnleaded 166.8pDiesel 196.2p
- Rhondda Cynon Taf26 forecourts · 9.1 miles awayUnleaded 166.9pDiesel 197.2p
- Torfaen7 forecourts · 14 miles awayUnleaded 167.4pDiesel 196.2p
- Bridgend15 forecourts · 18 miles awayUnleaded 166.1pDiesel 197.7p
- Cardiff29 forecourts · 18 miles awayUnleaded 169.1pDiesel 198.3p
- Newport17 forecourts · 18 miles awayUnleaded 170.3pDiesel 198.6p
- Neath Port Talbot15 forecourts · 20 miles awayUnleaded 167.4pDiesel 196.4p
Questions about fuel in Merthyr Tydfil
Where is the cheapest petrol in Merthyr Tydfil today?
- Asda Merthyr Tydfil Superstore (Dowlais Top, CF48 2YF) at 166.9p a litre, reported 6 Nov 2026, 16:21. Next is EG Merthyr Tydfil Pfs at 166.9p. Prices can change before you arrive.
Where is the cheapest diesel in Merthyr Tydfil today?
- Asda Merthyr Tydfil Superstore (Dowlais Top, CF48 2YF) at 196.9p a litre, reported 5 Nov 2026, 22:14. Next is EG Merthyr Tydfil Pfs at 196.9p. Prices can change before you arrive.
What is the average price of petrol in Merthyr Tydfil?
- Unleaded (E10) averages 169.5p a litre across 5 forecourts, against 169.4p for the UK as a whole. Diesel averages 197.9p. The averages use only prices reported in the last 30 days.
Which forecourts in Merthyr Tydfil are open 24 hours?
- Valley Heights Service Station, EG Merthyr Tydfil Pfs and Rontec Dowlais list 24-hour fuel. Hours come from the retailers themselves; the station pages show each day's times.
Where can I get AdBlue at the pump in Merthyr Tydfil?
- Valley Heights Service Station reports AdBlue pumps to the government's Fuel Finder scheme. Find the nearest AdBlue pump from anywhere in the UK.
Where can I buy LPG in Merthyr Tydfil?
- Valley Heights Service Station reports LPG pumps. The government scheme doesn't publish LPG prices. Every LPG station in the UK.
How often do fuel prices change in Merthyr Tydfil?
- Over the last week, 5 forecourts changed an unleaded or diesel price, 16 times in all (16 cuts, 0 rises). Retailers must report each change to the Fuel Finder scheme within 30 minutes, and FuelWise picks it up at its next read of the feed.
Get told when fuel in Merthyr Tydfil gets cheaper
Price-drop alerts, your saved stations and CarPlay are coming in the FuelWise iPhone app, which is in final testing. Prices here stay free on the web.
Prices are reported by the forecourts themselves to the UK Government's Fuel Finder scheme, which requires every change to be published within 30 minutes. FuelWise reads the feed every 15 minutes and last updated these figures on 9 Nov 2026, 01:58. Each price shows when it was reported; prices older than 30 days and stations that have stopped reporting are left out.
How we calculate averages · Contains public sector information licensed under the Open Government Licence v3.0.