St Mellons Superstore fuel prices
Tesco · CF3 0EF · Cardiff/Caerdydd
Tesco Stores Ltd, Crickhowell Road, St. Mellons, Cardiff
Unleaded here is 1.5p below the local average. 2nd cheapest of 9 within 3 miles. Full comparison
Diesel here is 1.0p below the local average at its last reported price, 18 days ago. 4th cheapest of 10 within 3 miles. Prices may have moved since, so check before you travel. Full comparison
Jump to: current prices, nearby stations, opening hours, amenities, something to eat, location and directions, how this station compares, price history, where the money goes or common questions.
Current prices at St Mellons Superstore
How much does it cost to fill up at St Mellons Superstore?
- Unleaded
- £94.00
- Super Unleaded
- £99.50
- Diesel
- £109.40
Planning a trip? Work out a journey's fuel cost.
Get directions
Petrol stations near CF3 0EF
| Station | Unleaded |
|---|---|
|
Texaco
St. Mellons Service Station, Newport Road, Old St. Mellons, Cardiff
|
175.9poldLast reported 32 days ago
0.4 mi
· Diesel 199.9poldLast reported 34 days ago
|
|
Asda
8 Dering Road, Pontprennau, Cardiff
|
172.9pLast reported 6 days ago
+2.0p dearer
1.4 mi
· Diesel 197.9pLast reported 19 days ago
-1.0p cheaper
|
|
Texaco
Pentwyn Service Station, Pentwyn Road, Pentwyn, Cardiff
|
176.9poldLast reported 30 days ago
1.5 mi
· Diesel 202.9p +4.0p dearer
|
|
Welcome Break
Motorway Services, Cardiff Gate, Cardiff
|
178.9pLast reported 28 days ago
+8.0p dearer
1.6 mi
· Diesel 203.9pLast reported 28 days ago
+5.0p dearer
|
|
Esso
Newport Road, Castleton / Cardiff, South Glamorgan
|
171.9pLast reported 3 days ago
+1.0p dearer
1.7 mi
· Diesel 199.9pLast reported 18 days ago
+1.0p dearer
|
|
Morrisons
Ipswich Road, Pen-Y-Lan, Cardiff
|
169.9pLast reported 3 days ago
-1.0p cheaper
2.4 mi
· Diesel 197.9pLast reported 9 days ago
-1.0p cheaper
|
|
Esso
Newport Road, Cardiff, South Glamorgan
|
171.9pLast reported 3 days ago
+1.0p dearer
2.5 mi
· Diesel 199.9pLast reported 18 days ago
+1.0p dearer
|
|
Valero
Newport Road, Cardiff, South Glamorgan
|
171.9pLast reported 3 days ago
+1.0p dearer
2.6 mi
· Diesel 199.9pLast reported 18 days ago
+1.0p dearer
|
Opening Hours
Amenities
Looking for something to eat?
Feeling a bit peckish? Grab something to eat while you fill up. We've gathered local places to eat, along with their food hygiene ratings.
At this forecourt
Hygiene ratings: Food Standards Agency. About this data.
How St Mellons Superstore fuel prices compare
Unleaded
0.9% cheaper than the 8 stations within 3 miles (-1.5p)
0.4% below the UK average (-0.7p)
0.2% above the Tesco national average (+0.3p)
2nd cheapest of 9 for Unleaded within 3 miles
Lowest 170.9p on 30 Oct · Highest 173.9p on 15 Oct
Super Unleaded
2.7% cheaper than the 2 stations within 3 miles (-5.0p)
4.1% below the UK average (-7.7p)
0.2% below the Tesco national average (-0.4p)
1st cheapest of 3 for Super Unleaded within 3 miles
Cheapest super unleaded within 3 miles
Lowest 180.9p on 30 Oct · Highest 183.9p on 15 Oct
Diesel
0.5% cheaper than the 9 stations within 3 miles (-1.0p)
0.2% above the UK average (+0.5p)
1.7% above the Tesco national average (+3.4p)
4th cheapest of 10 for Diesel within 3 miles
Lowest 198.9p on 14 Oct · Highest 198.9p on 14 Oct
St Mellons Superstore price history
Recent price changes
Unleaded and Super Unleaded have fallen 3.0p over the past week and have changed price 3 times in the last 30 days.
Diesel has not changed over the past week and has changed price 1 time in the last 30 days.
| Date | Unleaded | Super Unleaded | Diesel |
|---|---|---|---|
| In the past week | |||
| 170.9p −2.0 | 180.9p −2.0 | 198.9p | |
| 172.9p −1.0 | 182.9p −1.0 | 198.9p | |
| Earlier in the last 30 days | |||
| 173.9p −1.0 | 183.9p −1.0 | 198.9p | |
| 174.9p | 184.9p | 198.9p −1.0 | |
| More than 30 days ago | |||
| 174.9p +1.0 | 184.9p +1.0 | 199.9p +1.0 | |
| 173.9p +1.0 | 183.9p +1.0 | 198.9p | |
| 172.9p | 182.9p | 198.9p +1.0 | |
| 172.9p +1.0 | 182.9p +1.0 | 197.9p +1.0 | |
| 171.9p | 181.9p | 196.9p +1.0 | |
| 171.9p +1.0 | 181.9p +1.0 | 195.9p +2.0 | |
One row for each day a price changed. Greyed prices did not change that day. Dates are when the price was submitted, or when we first recorded it if no submission time was supplied.
Where the money goes
About 48% of what you pay for unleaded here is tax. Fuel duty is a flat 52.95p on every litre, and 20% VAT is then charged on the fuel and the duty together. The rest covers the fuel itself, delivery and the retailer's margin.
| Per litre | Pump price | Fuel and retailer | Fuel duty | VAT |
|---|---|---|---|---|
| Unleaded | 170.9p | 89.45p | 52.95p | 28.50p |
| Super Unleaded | 180.9p | 97.75p | 52.95p | 30.20p |
| Diesel | 198.9p | 112.75p | 52.95p | 33.20p |
Duty rate: GOV.UK, checked 13 October 2026.
Common questions about St Mellons Superstore
How much is unleaded at St Mellons Superstore?
Unleaded at St Mellons Superstore is 170.9p per litre, last reported on 30 October 2026. That is 0.7p below the UK average. A 55 litre fill costs about £94.00.
How much is diesel at St Mellons Superstore?
Diesel at St Mellons Superstore is 198.9p per litre, last reported on 14 October 2026. That is 0.5p above the UK average. A 55 litre fill costs about £109.40.
Is St Mellons Superstore the cheapest place for unleaded near Cardiff/Caerdydd?
No. Right now St Mellons Superstore is the 2nd cheapest of 9 stations for unleaded within 3 miles.
What are the opening hours of St Mellons Superstore?
St Mellons Superstore is open Monday to Sunday 06:00–22:00. Bank holiday hours can differ.
What fuel and facilities does St Mellons Superstore have?
St Mellons Superstore reports prices for Unleaded, Super Unleaded and Diesel. Facilities listed for the site: AdBlue (packaged), Air pump / screenwash, Car wash, Toilets and Water filling.
How often does St Mellons Superstore change its prices?
Unleaded has fallen 3.0p over the past week and has changed price 3 times in the last 30 days.