Cheapest Petrol Prices in Cardiff Bay
Last updated: · 20 stations tracked
Cheapest Petrol (E10)
171.7p
per litre · avg 174.34p
Cheapest Diesel (B7)
196.7p
per litre · avg 199.10p
Compare live petrol and diesel prices across 20 fuel stations in Cardiff Bay. Prices are sourced from the UK Government's official fuel price database and updated every hour. The cheapest petrol in Cardiff Bay today is 171.7p per litre, available at ASDA LECKWITH ROAD SUPERSTORE.
Supermarket forecourts — including Tesco, Asda, and Sainsbury's — typically offer the lowest prices in Cardiff Bay. Motorway services and branded stations (BP, Shell, Esso) often charge a premium. Use the table below to find the best deal near you.
Fuel Station Prices in Cardiff Bay
| Station | Unleaded (E10) | Diesel (B7) | Super Unleaded | Premium Diesel |
|---|---|---|---|---|
| MFG CARDIFF BAY | 173.9p | 199.9p | 195.9p | 219.9p |
| ASDA CARDIFF BAY SUPERSTORE | 171.9p | 196.9p | — | — |
| MFG MORRISONS CARDIFF BAY | 171.9p | 196.9p | 189.9p | — |
| TUDOR MOTORS | 171.9p | 199.9p | — | 219.9p |
| MFG NINIAN | 172.9p | 199.9p | 189.9p | — |
| PGG HADFIELD RD | 171.9p | 201.9p | 191.9p | 221.9p |
| PENARTH SUPERSTORE - PETROL FILLING STATION | 172.9p | 196.9p | 182.9p | — |
| MFG CARDIFF | 174.9p | 199.9p | 195.9p | 219.9p |
| RONTEC CATHEDRAL | 173.9p | 199.9p | — | 218.9p |
| Dimes - London | 188.9p | — | — | 18.4p |
| ASDA LECKWITH ROAD SUPERSTORE | 171.7p | 196.7p | — | — |
| CARDIFF PENGAM EXTRA - PETROL FILLING STATION | 173.9p | 197.9p | 183.9p | — |
| SAINSBURYS COLCHESTER AVENUE | 174.9p | 198.9p | — | — |
| MFG CARDINAL | 174.9p | 199.9p | 189.9p | — |
| MFG PREMIER | 174.9p | 199.9p | 195.9p | 219.9p |
| CITY FILLING STATION | 173.9p | 199.9p | — | — |
| MFG MORRISONS CARDIFF NEWPORT ROAD | 173.9p | 198.9p | 189.9p | 208.9p |
| CARDIFF EXTRA - PETROL FILLING STATION | 172.9p | 196.9p | 182.9p | — |
| Dinas Powys Service Station | 176.9p | 201.9p | 196.9p | 221.9p |
| RONTEC RED DRAGON | 173.9p | 199.9p | 192.9p | 218.9p |
Frequently Asked Questions
What is the cheapest petrol price in Cardiff Bay?
The cheapest petrol in Cardiff Bay is currently 171.7p per litre as of 21 October 2026. The average across all stations is 174.34p.
Which supermarket has the cheapest fuel in Cardiff Bay?
Tesco, Asda, and Sainsbury's supermarket forecourts typically offer the lowest fuel prices in Cardiff Bay. Check the price table above to compare all stations including branded and independent retailers.
How often are fuel prices updated for Cardiff Bay?
Prices are updated hourly from the UK Government's mandatory fuel price reporting scheme, which requires all fuel retailers with 6 or more sites to submit prices every 30 minutes.