Live prices
Cheapest petrol and diesel prices in Devon
4 forecourts tracked in Devon (4 reporting unleaded (E10), 4 reporting diesel (B7), 4 reporting premium (E5), 2 reporting super diesel). Prices last refreshed at 1:01pm on 18 September 2026.
The cheapest reported unleaded petrol (E10) in Devon is £7.50 a gallon (164.9p per litre) at Tesco, Barnstaple Retail Park, Barnstaple, Devon. The average across 4 forecourts currently reporting this grade is £7.69 a gallon (169.2p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £2.15 on a 50-litre fill. That local average is 3.3p per litre below the UK average of 172.5p.
The average is unchanged since yesterday. The average has risen 2.5p per litre since last week.
Prices last refreshed at 1:01pm on 18 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
At 164.9p per litre, the cheapest unleaded in Devon is the highest we have recorded here in 4 weeks. The Devon average has risen 2.5p a litre over the past week.
Unleaded Prices
Unleaded (E10)
- Highest
- £7.86/gal172.9p/L
- Average
- £7.69/gal169.2p/L
- Lowest
- £7.77/gal170.9p/L
Diesel Prices
Diesel (B7)
- Highest
- £8.77/gal192.9p/L
- Average
- £8.54/gal187.9p/L
- Lowest
- £8.72/gal191.9p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £8.45/gal185.9p/L
- Average
- £8.02/gal176.4p/L
- Lowest
- £8.45/gal185.9p/L
Super Diesel Prices
Super Diesel (SDV)
- Highest
- £9.36/gal205.9p/L
- Average
- £8.06/gal177.4p/L
- Lowest
- £6.77/gal148.9p/L
All forecourts in Devon
4 forecourts in Devon, with live prices and full addresses. Showing 1 to 4.
Barnstaple Retail Park, Barnstaple, Devon · EX31 2AS
Usually cheapest midnight to 5am, priciest 7pm to midnight here
DirectionsDiesel B7
Premium E5
Reckleford, Yeovil, Devon, Devon · BA21 4EH
Usually cheapest midnight to 5am, priciest 5pm to 10pm here
DirectionsDiesel B7
Premium E5
Salterton Road, Exmouth, Devon, Devon · EX8 2NE
Usually cheapest midnight to 5am, priciest noon to 5pm here
DirectionsDiesel B7
Premium E5
Super Diesel
Diesel B7
Premium E5
Super Diesel
Search near Devon
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Answers come straight from recorded official price data, refreshed every 30 minutes.
Cheapest reported unleaded
Tesco
Barnstaple Retail Park, Barnstaple, Devon
164.9p/L
Cheapest reported diesel
Gulf
Knowle Garage, Knowle, Braunton, Devon
181.9p/L
By fuel grade in Devon
Nearby areas
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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 Devon
- What is the average petrol price in Devon?
- The average unleaded (E10) petrol price in Devon is currently 169.2p per litre (approx. £7.69/gal), based on live data from 4 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.
- What is the average diesel price in Devon?
- The average diesel (B7) price in Devon is currently 187.9p per litre (approx. £8.54/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
- Which is the cheapest petrol station in Devon?
- Tesco at Barnstaple Retail Park, Barnstaple, Devon currently has the cheapest reported unleaded petrol in Devon at 164.9p per litre (approx. £7.50/gal). Prices change regularly, so check this page for the latest.
- Which is the most expensive petrol station in Devon?
- According to official UK government fuel price data, Beel Property Ltd (EX33 2NA) currently has the highest reported unleaded (E10) price in Devon at 172.9p per litre (approx. £7.86/gal). Prices are refreshed every 30 minutes, so this can change through the day.
- How do I find the cheapest fuel near Devon?
- 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.