Branded forecourt · Texaco
St Mellons Service Station
St. Mellons Service Station, CF3 5UG. One of 21 forecourts in Cardiff. Open 24 hours.
Updated 3 hours ago. Prices are what the retailer reported to Fuel Finder. Always check the price on the pump.
Price history at St Mellons Service Station
Every reported price change since 2 Feb 2026, in pence per litre. A step is a price change. A flat line means the price stayed the same.
- Unleaded petrol (E10)
- Diesel (B7)
- Super unleaded (E5)
How it compares
There are not enough recent prices nearby to compare.
Nearest forecourts
| # | Forecourt | Petrol | Diesel | Last move | Changed |
|---|---|---|---|---|---|
| 1 | St Mellons Superstore - Petrol Filling StationTesco Stores Ltd, Cardiff · supermarket · 0.4 miles | 173.9p | 198.9p | +1.0p | 4 weeks ago |
| 2 | Asda Pentwyn Superstore8 Dering Road, Cardiff · supermarket · 1.2 miles | 173.9p | 198.9p | +1.0p | 5 weeks ago |
| 3 | MFG CastletonNewport Road, Castleton / Cardiff · 24h · 1.3 miles | 176.9p | 202.9p | +1.0p | 4 weeks ago |
| 4 | Welcome Break CardiffMotorway Services, Cardiff Gate · motorway · 24h · 1.4 miles | 181.9p | 205.9p | +4.0p | 5 weeks ago |
| 5 | Pentwyn Service StationPentwyn Service Station, Cardiff · 24h · 1.6 miles | 175.9p | 202.9p | +1.0p | 5 weeks ago |
| 6 | MFG Morrisons Cardiff Newport RoadIpswich Road, Pen-Y-Lan · supermarket · 2.7 miles | 173.9p | 199.9p | +1.0p | 4 weeks ago |
| 7 | MFG PremierNewport Road, Cardiff · 24h · 2.9 miles | 176.9p | 202.9p | +1.0p | 4 weeks ago |
| 8 | MFG CardinalNewport Road, Cardiff · 24h · 2.9 miles | 176.9p | 202.9p | +1.0p | 4 weeks ago |
| 9 | Sainsbury's Colchester AvenueColchester Avenue, Cardiff · supermarket · 3.0 miles | 174.9p | 198.9p | +1.0p | 4 weeks ago |
| 10 | Cardiff Pengam Extra - Petrol Filling StationTesco Extra, Caerdydd · supermarket · 3.1 miles | 173.9p | 199.9p | +1.0p | 4 weeks ago |
| 11 | Texaco Three Arches ServicesThree Arches Services Ltd, Cardiff · 3.5 miles | 175.9p | 199.9p | +1.0p | 5 weeks ago |
| 12 | Dimes - London4 Wilson Street, Caerdydd · motorway · 3.6 miles | 189.0p | – | – | 4 Feb 2026 |
Map
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 |
| Bank holidays | Open 24 hours |
Facilities
- 24-hour fuel
- Car wash
- AdBlue (packaged)
- Air and screenwash
Recent price changes
The last 40 price changes the retailer reported, newest first. Times are UK time.
| When | Fuel | New price | Change |
|---|---|---|---|
| 1 Oct 2026, 08:34 BST | Petrol | 175.9p | +1.0p |
| 1 Oct 2026, 08:34 BST | Super unleaded | 195.9p | +1.0p |
| 29 Sep 2026, 08:49 BST | Diesel | 199.9p | +1.0p |
| 29 Sep 2026, 08:49 BST | Petrol | 174.9p | +1.0p |
| 29 Sep 2026, 08:49 BST | Super unleaded | 194.9p | +1.0p |
| 28 Sep 2026, 09:37 BST | Diesel | 198.9p | +1.0p |
| 28 Sep 2026, 09:37 BST | Petrol | 173.9p | +1.0p |
| 28 Sep 2026, 09:37 BST | Super unleaded | 193.9p | +1.0p |
| 23 Sep 2026, 09:31 BST | Diesel | 197.9p | +2.0p |
| 21 Sep 2026, 08:45 BST | Diesel | 195.9p | +1.0p |
| 21 Sep 2026, 08:45 BST | Petrol | 172.9p | +3.0p |
| 21 Sep 2026, 08:45 BST | Super unleaded | 192.9p | +3.0p |
| 19 Sep 2026, 12:35 BST | Diesel | 194.9p | +1.0p |
| 16 Sep 2026, 08:42 BST | Diesel | 193.9p | +2.0p |
| 16 Sep 2026, 08:42 BST | Petrol | 169.9p | +2.0p |
| 16 Sep 2026, 08:42 BST | Super unleaded | 189.9p | +2.0p |
| 14 Sep 2026, 09:18 BST | Diesel | 191.9p | +2.0p |
| 14 Sep 2026, 09:18 BST | Petrol | 167.9p | +1.0p |
| 14 Sep 2026, 09:18 BST | Super unleaded | 187.9p | +1.0p |
| 11 Sep 2026, 11:41 BST | Diesel | 189.9p | +3.0p |
| 9 Sep 2026, 10:27 BST | Petrol | 166.9p | +2.0p |
| 9 Sep 2026, 10:27 BST | Super unleaded | 186.9p | +2.0p |
| 5 Sep 2026, 13:01 BST | Diesel | 186.9p | +2.0p |
| 5 Sep 2026, 13:01 BST | Petrol | 164.9p | −17.0p |
| 5 Sep 2026, 13:01 BST | Super unleaded | 184.9p | +1.0p |
| 3 Sep 2026, 09:26 BST | Diesel | 184.9p | +3.0p |
| 3 Sep 2026, 09:26 BST | Petrol | 181.9p | +19.0p |
| 3 Sep 2026, 09:26 BST | Super unleaded | 183.9p | +1.0p |
| 4 Aug 2026, 08:42 BST | Petrol | 162.9p | +1.0p |
| 4 Aug 2026, 08:42 BST | Super unleaded | 182.9p | +1.0p |
| 3 Aug 2026, 09:01 BST | Diesel | 181.9p | +2.0p |
| 31 Jul 2026, 08:50 BST | Diesel | 179.9p | +1.0p |
| 31 Jul 2026, 08:50 BST | Petrol | 161.9p | +2.0p |
| 31 Jul 2026, 08:50 BST | Super unleaded | 181.9p | +2.0p |
| 29 Jul 2026, 13:57 BST | Diesel | 178.9p | +3.0p |
| 29 Jul 2026, 13:57 BST | Petrol | 159.9p | +1.0p |
| 29 Jul 2026, 13:57 BST | Super unleaded | 179.9p | +1.0p |
| 27 Jul 2026, 09:04 BST | Diesel | 175.9p | +4.0p |
| 27 Jul 2026, 09:04 BST | Petrol | 158.9p | +3.0p |
| 27 Jul 2026, 09:04 BST | Super unleaded | 178.9p | +3.0p |
Common questions
How much is petrol at St Mellons Service Station today?
St Mellons Service Station is charging 175.9p a litre for petrol. The price was reported 33 days ago, when it went up from 174.9p. The retailer reports its prices to the Government's Fuel Finder service. Always check the price on the pump.
What are the opening hours at St Mellons Service Station?
St Mellons Service Station sells fuel 24 hours a day, every day. These are the hours the retailer has given to Fuel Finder.
What facilities does St Mellons Service Station have?
The retailer says it has: 24-hour fuel, car wash, adblue (packaged), air and screenwash. Fuels usually sold: Unleaded petrol (E10), Diesel (B7), Super unleaded (E5).
Source: prices, hours and facilities reported by the retailer to the UK Government's Fuel Finder service (Open Government Licence v3.0). "Changed" means the last time the retailer reported a new price. It is not always the last time the retailer checked in. Spotted a wrong price? Tell us or report it to Fuel Finder.