Live prices
Cheapest petrol and diesel prices in Dumbarton
3 forecourts tracked in Dumbarton (3 reporting unleaded (E10), 2 reporting diesel (B7), 3 reporting premium (E5), 2 reporting super diesel). Prices last refreshed at 1:01pm on 19 September 2026.
The cheapest reported unleaded petrol (E10) in Dumbarton is £7.81 a gallon (171.9p per litre) at Morrisons, Glasgow Road, Dumbarton, Glasgow. The average across 3 forecourts currently reporting this grade is £7.87 a gallon (173.2p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £0.65 on a 50-litre fill. That local average is 0.7p per litre above the UK average of 172.5p.
The average has risen 0.3p per litre since yesterday. The average has risen 2.3p per litre since last week.
Prices last refreshed at 1:01pm on 19 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 Dumbarton is the highest we have recorded here in 4 weeks. The Dumbarton average has risen 2.3p a litre over the past week.
Unleaded Prices
Unleaded (E10)
- Highest
- £7.81/gal171.9p/L
- Average
- £7.87/gal173.2p/L
- Lowest
- £7.81/gal171.9p/L
Diesel Prices
Diesel (B7)
- Highest
- £9.09/gal199.9p/L
- Average
- £8.95/gal196.9p/L
- Lowest
- £8.81/gal193.9p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £8.68/gal190.9p/L
- Average
- £8.76/gal192.6p/L
- Lowest
- £8.63/gal189.9p/L
Super Diesel Prices
Super Diesel (SDV)
- Highest
- £10.04/gal220.9p/L
- Average
- £9.47/gal208.4p/L
- Lowest
- £8.91/gal195.9p/L
All forecourts in Dumbarton
3 forecourts in Dumbarton, with live prices and full addresses. Showing 1 to 3.
Glasgow Road, Dumbarton, Glasgow · G82 1QZ
Usually cheapest midnight to 5am, priciest 11pm to midnight here
DirectionsDiesel B7
Premium E5
Premium E5
Super Diesel
Dumbarton Road, Dumbarton, West Dunbartonshire · G82 2TN
Usually cheapest midnight to 5am, priciest 10am to 3pm here
DirectionsDiesel B7
Premium E5
Super Diesel
Search near Dumbarton
Ask the fuel analyst
Answers come straight from recorded official price data, refreshed every 30 minutes.
Cheapest reported unleaded
Morrisons
Glasgow Road, Dumbarton, Glasgow
171.9p/L
Cheapest reported diesel
Morrisons
Glasgow Road, Dumbarton, Glasgow
193.9p/L
By fuel grade in Dumbarton
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 Dumbarton
- What is the average petrol price in Dumbarton?
- The average unleaded (E10) petrol price in Dumbarton is currently 173.2p per litre (approx. £7.87/gal), based on live data from 3 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.
- What is the average diesel price in Dumbarton?
- The average diesel (B7) price in Dumbarton is currently 196.9p per litre (approx. £8.95/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
- Which is the cheapest petrol station in Dumbarton?
- Morrisons at Glasgow Road, Dumbarton, Glasgow currently has the cheapest reported unleaded petrol in Dumbarton 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 Dumbarton?
- According to official UK government fuel price data, Milton Sf Connect (G82 2TN) currently has the highest reported unleaded (E10) price in Dumbarton at 175.9p per litre (approx. £8.00/gal). Prices are refreshed every 30 minutes, so this can change through the day.
- How do I find the cheapest fuel near Dumbarton?
- 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.