Live prices
Cheapest petrol and diesel prices in Caerdydd
2 forecourts tracked in Caerdydd (2 reporting unleaded (E10), 2 reporting diesel (B7), 1 reporting premium (E5), 1 reporting super diesel). Prices last refreshed at 3:32am on 5 November 2026.
The cheapest reported unleaded petrol (E10) in Caerdydd is £7.68 a gallon (168.9p per litre) at Tesco, Tesco Extra, Ffordd Pengam, Caerdydd. The average across 2 forecourts currently reporting this grade is £7.70 a gallon (169.4p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £0.25 on a 50-litre fill. That local average is 1.6p per litre below the UK average of 171.0p.
The average has fallen 0.5p per litre since yesterday. The average has fallen 3.5p per litre since last week.
Prices last refreshed at 3:32am on 5 November 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
At 168.9p per litre, the cheapest unleaded in Caerdydd is the lowest we have recorded here in 4 weeks. The Caerdydd average has fallen 2.0p a litre over the past week.
Unleaded Prices
Unleaded (E10)
- Highest
- £7.72/gal169.9p/L
- Average
- £7.70/gal169.4p/L
- Lowest
- £7.68/gal168.9p/L
Diesel Prices
Diesel (B7)
- Highest
- £9.09/gal199.9p/L
- Average
- £9.04/gal198.9p/L
- Lowest
- £9.00/gal197.9p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £8.13/gal178.9p/L
- Average
- £8.13/gal178.9p/L
- Lowest
- £8.13/gal178.9p/L
Super Diesel Prices
Super Diesel (SDV)
- Highest
- £10.00/gal219.9p/L
- Average
- £10.00/gal219.9p/L
- Lowest
- £10.00/gal219.9p/L
All forecourts in Caerdydd
2 forecourts in Caerdydd, with live prices and full addresses. Showing 1 to 2.
Tesco Extra, Ffordd Pengam, Caerdydd · CF24 2HP
Usually cheapest 4pm to 9pm, priciest 7am to noon here
DirectionsDiesel B7
Premium E5
Tudor Filling Station, 14-24, Tudor Street, Caerdydd, CF11 6AF, Caerdydd · CF11 6AF
DirectionsDiesel B7
Super Diesel
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Answers come straight from recorded official price data, refreshed every 30 minutes.
Cheapest reported unleaded
Tesco
Tesco Extra, Ffordd Pengam, Caerdydd
168.9p/L
Cheapest reported diesel
Tesco
Tesco Extra, Ffordd Pengam, Caerdydd
197.9p/L
By fuel grade in Caerdydd
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Prices are sourced from official UK government fuel-price data (Open Government Licence v3.0). Updated every 30 minutes.
Questions about fuel prices in Caerdydd
- What is the average petrol price in Caerdydd?
- The average unleaded (E10) petrol price in Caerdydd is currently 169.4p per litre (approx. £7.70/gal), based on live data from 2 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.
- What is the average diesel price in Caerdydd?
- The average diesel (B7) price in Caerdydd is currently 198.9p per litre (approx. £9.04/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
- Which is the cheapest petrol station in Caerdydd?
- Tesco at Tesco Extra, Ffordd Pengam, Caerdydd currently has the cheapest reported unleaded petrol in Caerdydd at 168.9p per litre (approx. £7.68/gal). Prices change regularly, so check this page for the latest.
- Which is the most expensive petrol station in Caerdydd?
- According to official UK government fuel price data, Tudor Motors (CF11 6AF) currently has the highest reported unleaded (E10) price in Caerdydd at 169.9p per litre (approx. £7.72/gal). Prices are refreshed every 30 minutes, so this can change through the day.
- How do I find the cheapest fuel near Caerdydd?
- Use the search box above to enter your postcode. fuel.co.uk will show you every forecourt ranked cheapest first, with live prices updated every 30 minutes from the GOV.UK Fuel Finder.