Petrol and diesel prices in Mountain Ash
Cheapest petrol near Mountain Ash right now: 170.7p at Asda Aberdare Superstore, reported 16:26 on 15 Oct. Cheapest diesel: 197.9p at Esso Rontec Mountain Ash. Diesel in Mountain Ash averages 198.9p, 0.3p below the UK average.
- Asda Tonypandy Superstore showed 169.7p for petrol when it last reported, on 13 Oct. That price may have changed.
- No town within 15 miles has cheaper petrol than Mountain Ash's best price today.
- Mountain Ash is in the Rhondda Cynon Taf council area, 55th cheapest of 354 for petrol in the council league table, averaging 172.0p.
Distance in miles from Mountain Ash town centre, as the crow flies. Showing stations within 5 miles.
Distance in miles from Mountain Ash town centre, as the crow flies. Showing stations within 3 miles.
Price trend
We started recording daily average prices in Mountain Ash on 16 October 2026. The trend chart appears here once there are a few days of data.
Not in central Mountain Ash?
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All petrol stations in Mountain Ash
2 petrol stations with a Mountain Ash address, cheapest petrol first.
| Station | Petrol | Diesel | Reported |
|---|---|---|---|
| Esso Rontec Mountain AshCardiff Road, Mountain Ash, CF45 4HT · Open 24 hours | – | 197.9p | 16 Oct |
| Murco Abercynon Service StationMain Road, Ynysboeth, Mountain Ash, CF45 4LJ · Open 24 hours | – | 199.9p | 19 Sept |
Supermarket fuel prices in and near Mountain Ash
3 Asda forecourts within 5 miles of Mountain Ash, cheapest petrol first.
| Station | Petrol | Diesel | Miles |
|---|---|---|---|
| Asda Tonypandy SuperstoreColliers Way,, Tonypandy, CF40 2JQ | 169.7p | 195.7p | 5 |
| Asda Aberdare SuperstoreRiverside Retail Park, Aberdare, CF44 0AH | 170.7p | 196.7p | 3 |
| Asda Pontypridd Rhondda RoadRhondda Road, Pontypridd, CF37 1HF | 170.9p | 196.9p | 5 |
24-hour petrol stations in Mountain Ash
2 stations sell fuel 24 hours a day in Mountain Ash, cheapest petrol first. Shop hours can be shorter; check the station page.
| Station | Petrol | Diesel | Miles |
|---|---|---|---|
| Esso Rontec Mountain AshCardiff Road, Mountain Ash, CF45 4HT | – | 197.9p | 1 |
| Murco Abercynon Service StationMain Road, Ynysboeth, Mountain Ash, CF45 4LJ | – | 199.9p | 1 |
Super unleaded, premium diesel and AdBlue in Mountain Ash
Super unleaded (E5)
5 stations in and around Mountain Ash sell super unleaded (e5), averaging 190.7p a litre. The cheapest is Texaco Aberdare Service Station at 185.9p.
Premium diesel
4 stations in and around Mountain Ash sell premium diesel, averaging 214.9p a litre. The cheapest is BP Midglanmorgan at 209.9p.
AdBlue
AdBlue at the pump at Valero MFG Abercynon.
Fuel price alerts for Mountain Ash
Price alerts are coming soon. Join the waitlist and we'll email you when they start: an alert when fuel near you drops by 3p a litre or more, and the 10 cheapest pumps near your postcode every Friday.
Questions about fuel prices in Mountain Ash
Where is the cheapest petrol in Mountain Ash?
Today the cheapest petrol near Mountain Ash is 170.7p a litre at Asda Aberdare Superstore, Riverside Retail Park, Aberdare, CF44 0AH.
How much is diesel in Mountain Ash today?
Diesel averages 198.9p a litre across 2 forecourts in Mountain Ash, against a UK average of 199.2p.
Which supermarket has the cheapest petrol in Mountain Ash?
Asda Tonypandy Superstore is cheapest at 169.7p a litre, 5 miles from the centre. We compare 3 supermarket forecourts in and near Mountain Ash above.
How up to date are these prices?
Forecourts report their prices to the government's Fuel Finder scheme and we refresh them twice a day. These were last updated 17:30 today. Each forecourt's table row shows the day its price was reported.
Is there a 24-hour petrol station in Mountain Ash?
Yes. Esso Rontec Mountain Ash and Murco Abercynon Service Station sell fuel 24 hours a day.