What is the cheapest petrol in Merthyr Tydfil today?

The cheapest petrol in Merthyr Tydfil is 172.9p per litre at Asda ASDA MERTHYR TYDFIL SUPERSTORE, based on 3 stations with live prices. Unleaded (E10) averages 174.6p per litre.

What is the cheapest diesel in Merthyr Tydfil today?

The cheapest diesel in Merthyr Tydfil is 197.9p per litre at Asda ASDA MERTHYR TYDFIL SUPERSTORE, based on 3 stations with live prices. Diesel averages 199.6p per litre.

Are supermarket petrol stations cheaper in Merthyr Tydfil?

Yes. Supermarket forecourts in Merthyr Tydfil currently average 172.9p per litre for unleaded, 2.5p less than the 175.4p average at branded and independent stations.

Merthyr Tydfil Fuel Prices

Find the cheapest petrol and diesel in Merthyr Tydfil. Live prices from 3 fuel stations, updated hourly from the official Fuel Finder feed.

Fuel price answer

cheapest petrol and diesel in Merthyr Tydfil

As of 18 September 2026, the cheapest unleaded petrol in Merthyr Tydfil is 172.9p/L at Asda ASDA MERTHYR TYDFIL SUPERSTORE, the cheapest diesel in Merthyr Tydfil is 197.9p/L at Asda ASDA MERTHYR TYDFIL SUPERSTORE. Across 3 stations, unleaded averages 174.6p/L and diesel 199.6p/L. Supermarket forecourts in Merthyr Tydfil average 2.5p/L less than branded stations for unleaded.

Unleaded (E10)

172.9p cheapest

Avg 174.6pHigh 176.9pSpread 4.0p3 priced

Diesel

197.9p cheapest

Avg 199.6pHigh 201.9pSpread 4.0p3 priced

Cheapest Unleaded (E10) in Merthyr Tydfil

1. Asda — ASDA MERTHYR TYDFIL SUPERSTORE · MERTHYR TYDFIL172.9p
2. EG ON THE MOVE — EG MERTHYR TYDFIL PFS · MERTHYR TYDFIL173.9p
3. Esso — RONTEC DOWLAIS · MERTHYR TYDFIL176.9p

Cheapest Diesel in Merthyr Tydfil

1. Asda — ASDA MERTHYR TYDFIL SUPERSTORE · MERTHYR TYDFIL197.9p
2. EG ON THE MOVE — EG MERTHYR TYDFIL PFS · MERTHYR TYDFIL198.9p
3. Esso — RONTEC DOWLAIS · MERTHYR TYDFIL201.9p

Data freshness

Updated 18 Sept 2026, 14:48

Methodology

PetrolPal groups stations by country, region, and city from postcode-derived location data. Local pages are designed to help drivers compare nearby petrol and diesel prices before choosing where to fill up.

Citation

Source: PetrolPal, using official UK forecourt fuel price data. Cite: https://petrolpal.co.uk/fuel-prices/wales/merthyr-tydfil

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About Merthyr Tydfil Fuel Prices

PetrolPal tracks live fuel prices in Merthyr Tydfil using official UK Government data, updated hourly. Compare petrol and diesel prices from supermarkets, branded stations, and independents to find the cheapest fuel near you.

Prices in Merthyr Tydfil are based on stations in the Wales. View the Merthyr Tydfil statistics page for detailed price analytics including brand averages, price distribution, and historical trends.

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