Local price scan
Cheapest petrol and diesel prices in Mountain Ash
2 tracked forecourts in Mountain Ash, last updated 19 September 2026. Prices are pence per litre.
Unleaded petrol (E10)
173.9p
cheapest · 173.9p average across 2 stations
Diesel (B7)
199.9p
cheapest · 199.9p average across 2 stations
Super unleaded (E5)
192.9p
cheapest · 192.9p average across 1 station
Mountain Ash price history
Daily average standard petrol and diesel prices across tracked local stations over the last 90 days.
Mountain Ash stations ranked by price
| ABERCYNON SERVICE STATIONMURCO · CF45 4LJ | 173.9p | 199.9p | — |
|---|---|---|---|
| RONTEC MOUNTAIN ASHESSO · CF45 4HT | 173.9p | 199.9p | 192.9p |
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Where these stations are
What drivers in Mountain Ash should know
The gap between the cheapest and most expensive forecourt in Mountain Ash is currently 0.0p per litre. On a typical 55-litre fill that is about £0.00 — worth a short detour if a cheaper site is already on your route.
At 173.9p the average unleaded petrol (e10) price in Mountain Ash is below the UK-wide average of 174.7p that PumpScan is tracking, a difference of 0.8p per litre.
Brands represented locally include MURCO, ESSO. Supermarket forecourts usually undercut motorway services by a wide margin, and prices in and around Mountain Ash tend to move within a day or two of a change in the wholesale oil price. Filling up mid-week and avoiding a near-empty tank on a motorway trip are the two simplest ways to keep costs down.
Compare Mountain Ash against the rest of the country on the cheapest petrol in the UK and cheapest diesel in the UK leaderboards.
All filling stations in Mountain Ash
- ABERCYNON SERVICE STATIONMAIN ROAD, YNYSBOETH, ABERCYNON,, MOUNTAIN ASH, MID GLAMORGAN
- RONTEC MOUNTAIN ASHCARDIFF ROAD, MOUNTAIN ASH, MID GLAMORGAN
Looking elsewhere? See all areas covered by PumpScan UK. Area slug: /petrol-prices/mountain-ash