What is the cheapest petrol in Swansea today?

The cheapest petrol in Swansea is 149.9p per litre at Olew Trefigin Oil B V REES LTD, based on 32 stations with live prices. Unleaded (E10) averages 160.8p per litre.

What is the cheapest diesel in Swansea today?

The cheapest diesel in Swansea is 164.9p per litre at Murco KNELSTON SERVICE STATION, based on 31 stations with live prices. Diesel averages 179.4p per litre.

Are supermarket petrol stations cheaper in Swansea?

Yes. Supermarket forecourts in Swansea currently average 158.8p per litre for unleaded, 3.8p less than the 162.6p average at branded and independent stations.

Swansea Fuel Prices

Find the cheapest petrol and diesel in Swansea. Live prices from 32 fuel stations, updated hourly from the official Fuel Finder feed.

Fuel price answer

cheapest petrol and diesel in Swansea

As of 4 August 2026, the cheapest unleaded petrol in Swansea is 149.9p/L at Olew Trefigin Oil B V REES LTD, the cheapest diesel in Swansea is 164.9p/L at Murco KNELSTON SERVICE STATION. Across 32 stations, unleaded averages 160.8p/L and diesel 179.4p/L. Supermarket forecourts in Swansea average 3.8p/L less than branded stations for unleaded.

Unleaded (E10)

149.9p cheapest

Avg 160.8pHigh 185.9pSpread 36.0p32 priced

Diesel

164.9p cheapest

Avg 179.4pHigh 205.9pSpread 41.0p31 priced

Cheapest Unleaded (E10) in Swansea

1. Olew Trefigin Oil — B V REES LTD · Swansea149.9p
2. Murco — CHIVERS CORNER GARAGE · Swansea149.9p
3. Murco — KNELSTON SERVICE STATION · Swansea151.9p
4. Texaco — VST PARKSTREET FILLING STATION · Swansea153.9p
5. Tesco — SWANSEA PONTARDAWE SUPERSTORE - PETROL FILLING STATION · SWANSEA153.9p

Cheapest Diesel in Swansea

1. Murco — KNELSTON SERVICE STATION · Swansea164.9p
2. Murco — CHIVERS CORNER GARAGE · Swansea164.9p
3. Tesco — SWANSEA PONTARDAWE SUPERSTORE - PETROL FILLING STATION · SWANSEA171.9p
4. Texaco — VST PARKSTREET FILLING STATION · Swansea173.9p
5. Texaco — BAGLAN SERVICE STATION · Swansea175.9p

Data freshness

Updated 4 Aug 2026, 01:01

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/swansea

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About Swansea Fuel Prices

PetrolPal tracks live fuel prices in Swansea 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 Swansea are based on stations in the Wales. View the Swansea statistics page for detailed price analytics including brand averages, price distribution, and historical trends.

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