Fuel station
St Mellons Service Station (CF3 5UG)
A TEXACO forecourt
ST. MELLONS SERVICE STATION, NEWPORT ROAD, OLD ST. MELLONS, CARDIFF, Cardiff, CF3 5UG
E10: 159.9p · B7: 178.9p · E5: 179.9p
This station's unleaded price is 0.3p per litre above the average of stations within 5 miles (159.6p).
Prices last recorded at 6:31pm on 30 July 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
When each price was set
| Grade | Price | Price set |
|---|---|---|
| Diesel (B7) | 178.9p | 1:57pm on 29 July 2026 |
| Unleaded (E10) | 159.9p | 1:57pm on 29 July 2026 |
| Premium Unleaded (E5) | 179.9p | 1:57pm on 29 July 2026 |
"Price set" is the station's own last-updated timestamp per grade from the official feed. A grade can hold the same price for weeks; the freshest grades are the ones the station actively reprices.
Cheaper unleaded within 5 miles
| Station | Distance | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|---|
| TEXACO (CF14 3AD)PREMIER, 99-101, NORTH ROAD, CAERDYDD, CF14 3AD | 4.5 mi | 154.9p | -- | -- | -- | |
| ASDA (NP10 8XL)PENCARN WAY - COEDKERNEW, NEWPORT | 3.8 mi | 155.7p | -- | -- | -- | |
| TESCO (NP20 3BA)UNIT 6 HARLECH RETAIL PARK, CARDIFF ROAD, CASNEWYDD | 4.9 mi | 156.9p | -- | -- | -- | |
| SAINSBURY'S (CF23 9XN)COLCHESTER AVENUE, PENYLAN, CARDIFF | 3.0 mi | 157.9p | -- | -- | -- | |
| TESCO (CF14 6BN)TESCO EXPRESS, TYN-Y-PARC ROAD, CARDIFF | 5.0 mi | 157.9p | -- | -- | -- |
Recent price changes
| Recorded | Unleaded | Diesel | Premium | Super diesel |
|---|---|---|---|---|
| 29 Jul 2026, 13:01 | 159.9p | 178.9p | 179.9p | -- |
| 27 Jul 2026, 08:31 | 158.9p | 175.9p | 178.9p | -- |
| 24 Jul 2026, 08:02 | 155.9p | 171.9p | 175.9p | -- |
| 21 Jul 2026, 10:01 | 154.9p | 169.9p | 174.9p | -- |
| 20 Jul 2026, 08:02 | 153.9p | 166.9p | 173.9p | -- |
| 15 Jul 2026, 09:31 | 151.9p | 162.9p | 171.9p | -- |
Rows show snapshots where at least one price changed, over the last 30 days of recorded data.
Opening hours
| monday | Open 24 hours |
| tuesday | Open 24 hours |
| wednesday | Open 24 hours |
| thursday | Open 24 hours |
| friday | Open 24 hours |
| saturday | Open 24 hours |
| sunday | Open 24 hours |
Hours as published by the station to the official scheme.
Facilities
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Prices, hours and facilities are sourced from official UK government fuel-price data (Open Government Licence v3.0). fuel.co.uk is independent of this station and does not operate it.