Cheapest Petrol Prices in Castleton Cardiff
Last updated: · 20 stations tracked
Cheapest Petrol (E10)
172.9p
per litre · avg 175.89p
Cheapest Diesel (B7)
196.7p
per litre · avg 199.63p
Compare live petrol and diesel prices across 20 fuel stations in Castleton Cardiff. Prices are sourced from the UK Government's official fuel price database and updated every hour. The cheapest petrol in Castleton Cardiff today is 172.9p per litre, available at MFG MORRISONS NEWPORT ROGERSTONE.
Supermarket forecourts — including Tesco, Asda, and Sainsbury's — typically offer the lowest prices in Castleton Cardiff. 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 Castleton Cardiff
| Station | Unleaded (E10) | Diesel (B7) | Super Unleaded | Premium Diesel |
|---|---|---|---|---|
| St Mellons Service Station | 175.9p | 199.9p | 195.9p | — |
| ST MELLONS SUPERSTORE - PETROL FILLING STATION | 173.9p | 198.9p | 183.9p | — |
| MFG CASTLETON | 175.9p | 199.9p | 195.9p | 219.9p |
| ASDA PENTWYN SUPERSTORE | 173.9p | 197.9p | — | — |
| WELCOME BREAK CARDIFF | 178.9p | 203.9p | 190.9p | 215.9p |
| Pentwyn Service Station | 176.9p | 203.9p | 196.9p | 223.9p |
| ASDA NEWPORT SUPERSTORE | 173.7p | 196.7p | — | — |
| MFG MORRISONS CARDIFF NEWPORT ROAD | 173.9p | 197.9p | 189.9p | 207.9p |
| MFG PREMIER | 174.9p | 199.9p | 195.9p | 219.9p |
| MFG CARDINAL | 174.9p | 199.9p | 189.9p | — |
| CARDIFF PENGAM EXTRA - PETROL FILLING STATION | 173.9p | 197.9p | 183.9p | — |
| SAINSBURYS COLCHESTER AVENUE | 173.9p | 197.9p | — | — |
| Dimes - London | 188.9p | — | — | 18.4p |
| NEWPORT EXTRA - PETROL FILLING STATION | 173.9p | 196.9p | 183.9p | — |
| Texaco Three Arches Services | 175.9p | 199.9p | — | — |
| ASDA NEWPORT EXPRESS PETROL | 178.9p | 202.9p | 196.9p | — |
| MFG CARDIFF | 174.9p | 199.9p | 195.9p | 219.9p |
| MFG MORRISONS NEWPORT ROGERSTONE | 172.9p | 197.9p | 189.9p | 207.9p |
| SAINSBURYS THORNHILL | 173.9p | 198.9p | 185.9p | — |
| ASDA STOW HILL EXPRESS PETROL | 177.9p | 201.9p | 196.9p | — |
Frequently Asked Questions
What is the cheapest petrol price in Castleton Cardiff?
The cheapest petrol in Castleton Cardiff is currently 172.9p per litre as of 16 October 2026. The average across all stations is 175.89p.
Which supermarket has the cheapest fuel in Castleton Cardiff?
Tesco, Asda, and Sainsbury's supermarket forecourts typically offer the lowest fuel prices in Castleton Cardiff. Check the price table above to compare all stations including branded and independent retailers.
How often are fuel prices updated for Castleton Cardiff?
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.