Live prices
Cheapest petrol and diesel prices in St Austell
7 forecourts tracked in St Austell (7 reporting unleaded (E10), 7 reporting diesel (B7), 6 reporting premium (E5), 4 reporting super diesel). Prices last refreshed at 4:02pm on 20 September 2026.
The cheapest reported unleaded petrol (E10) in St Austell is £7.81 a gallon (171.9p per litre) at Tesco, Daniels Lane, ST Austell. The average across 7 forecourts currently reporting this grade is £7.96 a gallon (175.0p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £1.55 on a 50-litre fill. That local average is 2.3p per litre above the UK average of 172.7p.
The average is unchanged since yesterday. The average has risen 3.2p per litre since last week.
Prices last refreshed at 4:02pm on 20 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
At 171.9p per litre, the cheapest unleaded in St Austell is the highest we have recorded here in 4 weeks. The St Austell average has risen 2.6p a litre over the past week.
Unleaded Prices
Unleaded (E10)
- Highest
- £7.91/gal173.9p/L
- Average
- £7.96/gal175.0p/L
- Lowest
- £7.81/gal171.9p/L
Diesel Prices
Diesel (B7)
- Highest
- £9.09/gal199.9p/L
- Average
- £9.00/gal198.0p/L
- Lowest
- £8.86/gal194.9p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £8.27/gal181.9p/L
- Average
- £8.69/gal191.1p/L
- Lowest
- £8.18/gal179.9p/L
Super Diesel Prices
Super Diesel (SDV)
- Highest
- £10.00/gal219.9p/L
- Average
- £9.86/gal216.9p/L
- Lowest
- £9.95/gal218.9p/L
All forecourts in St Austell
7 forecourts in St Austell, with live prices and full addresses. Showing 1 to 7.
Daniels Lane, ST Austell · PL25 3HT
Usually cheapest midnight to 5am, priciest 5pm to 10pm here
DirectionsDiesel B7
Premium E5
Diesel B7
Super Diesel
Terras Garage, 62, Terras Road, ST. Stephen, ST. Austell · PL26 7RX
Usually cheapest midnight to 5am, priciest 5pm to 10pm here
DirectionsDiesel B7
Premium E5
By-pass Filling Station, Southbourne Road, ST. Austell, PL25 4RS, ST. Austell · PL25 4RS
Usually cheapest midnight to 5am, priciest 7pm to midnight here
DirectionsDiesel B7
Premium E5
Super Diesel
Penwyn Garage, Hendra Road, ST. Dennis, ST. Austell · PL26 8EQ
Usually cheapest midnight to 5am, priciest 11am to 4pm here
DirectionsDiesel B7
Premium E5
Victoria Square, Victoria, Roche, ST Austell, Cornwall · PL26 8LQ
Usually cheapest midnight to 5am, priciest 1pm to 6pm here
DirectionsDiesel B7
Premium E5
Super Diesel
A30 Victoria Junction, ST. Austell, Cornwall · PL26 8UF
Usually cheapest midnight to 5am, priciest 5pm to 10pm here
DirectionsDiesel B7
Premium E5
Super Diesel
Search near St Austell
Ask the fuel analyst
Answers come straight from recorded official price data, refreshed every 30 minutes.
Cheapest reported unleaded
Tesco
Daniels Lane, ST Austell
171.9p/L
Cheapest reported diesel
Tesco
Daniels Lane, ST Austell
194.9p/L
By fuel grade in St Austell
Nearby areas
Save more as a driver
Prices are sourced from official UK government fuel-price data (Open Government Licence v3.0). Updated every 30 minutes.
Questions about fuel prices in St Austell
- What is the average petrol price in St Austell?
- The average unleaded (E10) petrol price in St Austell is currently 175.0p per litre (approx. £7.96/gal), based on live data from 7 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.
- What is the average diesel price in St Austell?
- The average diesel (B7) price in St Austell is currently 198.0p per litre (approx. £9.00/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
- Which is the cheapest petrol station in St Austell?
- Tesco at Daniels Lane, ST Austell currently has the cheapest reported unleaded petrol in St Austell at 171.9p per litre (approx. £7.81/gal). Prices change regularly, so check this page for the latest.
- Which is the most expensive petrol station in St Austell?
- According to official UK government fuel price data, Shell Cornish Gateway (PL26 8UF) currently has the highest reported unleaded (E10) price in St Austell at 181.9p per litre (approx. £8.27/gal). Prices are refreshed every 30 minutes, so this can change through the day.
- How do I find the cheapest fuel near St Austell?
- 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.