Petrol and diesel prices in Machynlleth

Cheapest petrol near Machynlleth right now: 174.9p at Br Tywyn, reported 12:18 on 14 Oct. Petrol in Machynlleth averages 172.9p, 1.3p below the UK average. Cheapest diesel: 198.9p at Texaco Ascona Machynlleth Service Station. Diesel in Machynlleth averages 198.4p, 0.8p below the UK average.

  • Mallwyd Service Station showed 172.9p for petrol when it last reported, on 22 Sept. That price may have changed.
  • Mallwyd Service Station showed 197.9p for diesel when it last reported, on 12 Oct. That price may have changed.
  • No town within 15 miles has cheaper petrol than Machynlleth's best price today.
  • 0 of 2 forecourts here reported a petrol price in the last 3 days. Older prices show the date they were reported.
  • Machynlleth is in the Gwynedd council area, 134th cheapest of 354 for petrol in the council league table, averaging 174.2p.
Cheapest petrol near Machynlleth
Mallwyd Service Station 172.9p 5 mi Mallwyd Service Station, Machynlleth, SY20 9HN · reported 22 Sept Texaco Ascona Machynlleth Service Station 172.9p 5 mi Heol Y Doll, Machynlleth, SY20 8BH · reported 5 Oct Esso Cwt Gwyn Cyf 172.9p 8 mi Cwt Gwyn Cyf, Dolgellau, LL40 2AB · reported 22 Sept Service Garage 172.9p 14½ mi Llanerfyl, Welshpool, SY210EG · reported 24 Sept Br Tywyn 174.9p 14¼ mi Spar Stores, Tywyn, LL36 9AD Murco Garej Davmor Ltd 175.9p 14¼ mi Davmor Garage, Tal-Y-Bont, SY24 5HE · reported 24 Sept

Distance in miles from Machynlleth town centre, as the crow flies. Showing stations within 15 miles.

Cheapest diesel near Machynlleth
Mallwyd Service Station 197.9p 5 mi Mallwyd Service Station, Machynlleth, SY20 9HN · reported 12 Oct Texaco Ascona Machynlleth Service Station 198.9p 5 mi Heol Y Doll, Machynlleth, SY20 8BH Esso Cwt Gwyn Cyf 199.9p 8 mi Cwt Gwyn Cyf, Dolgellau, LL40 2AB · reported 22 Sept Texaco Spar Express Dolgellau 199.9p 8¼ mi Spar Stores, Dolgellau, LL40 2YF · reported 6 Oct Br Tywyn 199.9p 14¼ mi Spar Stores, Tywyn, LL36 9AD · reported 23 Sept Murco Garej Davmor Ltd 199.9p 14¼ mi Davmor Garage, Tal-Y-Bont, SY24 5HE · reported 24 Sept Service Garage 199.9p 14½ mi Llanerfyl, Welshpool, SY210EG · reported 24 Sept

Distance in miles from Machynlleth town centre, as the crow flies. Showing stations within 15 miles.

Average petrol in Machynlleth172.9p−1.3p vs UK average
Average diesel in Machynlleth198.4p−0.8p vs UK average
UK average petrol174.2pdiesel 199.2p

Price trend

We started recording daily average prices in Machynlleth on 16 October 2026. The trend chart appears here once there are a few days of data.

Not in central Machynlleth?

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All petrol stations in Machynlleth

2 petrol stations with a Machynlleth address, cheapest petrol first.

StationPetrolDieselReported
Mallwyd Service StationMallwyd Service Station, Machynlleth, SY20 9HN 172.9p197.9p 12 Oct
Texaco Ascona Machynlleth Service StationHeol Y Doll, Machynlleth, SY20 8BH 172.9p198.9p 14 Oct

Nearest 24-hour petrol stations to Machynlleth

No station in Machynlleth sells fuel round the clock. These are the nearest that do. Shop hours can be shorter; check the station page.

StationPetrolDieselMiles
Texaco Mill St Service StationAberystwyth Service Station, Aberystwyth, SY23 1HZ –199.9p21

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Fuel prices in nearby towns

Dolgellau8 milesTywyn14 milesTal-Y-Bont14 milesY Bala15 milesLlanidloes17 milesCaersws17 milesBlaenau Ffestiniog19 milesBala19 miles

Fuel prices across Gwynedd · All towns in West Midlands

Questions about fuel prices in Machynlleth

Where is the cheapest petrol in Machynlleth?

Today the cheapest petrol near Machynlleth is 174.9p a litre at Br Tywyn, Spar Stores, Tywyn, LL36 9AD.

How much is diesel in Machynlleth today?

Diesel averages 198.4p a litre across 2 forecourts in Machynlleth, against a UK average of 199.2p.

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 Machynlleth?

Not in Machynlleth itself. The nearest is Texaco Mill St Service Station, 21 miles away.