Local price scan

Cheapest petrol and diesel prices in Machynlleth

2 tracked forecourts in Machynlleth, last updated 5 October 2026. Prices are pence per litre.

Unleaded petrol (E10)

172.9p

cheapest · 172.9p average across 2 stations

Diesel (B7)

199.9p

cheapest · 199.9p average across 2 stations

Super unleaded (E5)

199.9p

cheapest · 199.9p average across 1 station

Premium diesel

219.9p

cheapest · 219.9p average across 1 station

Machynlleth price history

Daily average standard petrol and diesel prices across tracked local stations over the last 90 days.

Machynlleth stations ranked by price

Fuel prices by station, sorted by Unleaded petrol (E10) (cheapest first)

ASCONA MACHYNLLETH SERVICE STATIONTEXACO · SY20 8BH	172.9p	199.9p	199.9p	219.9p
Mallwyd Service StationMallwyd Service Station · SY20 9HN	172.9p	199.9p	—	—

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Where these stations are

What drivers in Machynlleth should know

The gap between the cheapest and most expensive forecourt in Machynlleth 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 172.9p the average unleaded petrol (e10) price in Machynlleth is below the UK-wide average of 174.7p that PumpScan is tracking, a difference of 1.8p per litre.

Brands represented locally include TEXACO, Mallwyd Service Station. Supermarket forecourts usually undercut motorway services by a wide margin, and prices in and around Machynlleth 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 Machynlleth against the rest of the country on the cheapest petrol in the UK and cheapest diesel in the UK leaderboards.

All filling stations in Machynlleth

Looking elsewhere? See all areas covered by PumpScan UK. Area slug: /petrol-prices/machynlleth