Choosing the right place to fill up your vehicle can help you make big savings in the long run. When you're going for a full tank especially, the pennies soon add up.
The average size of a car fuel tank is around 55 litres, so if you know of anywhere that sells for a few pence cheaper per litre, it might be worth going the extra distance to get your fuel. Below we've put together a breakdown of petrol and diesel prices across all six counties, including which forecourts have the cheapest rates and how much money you can save by choosing the cheapest option.
The prices quoted are for standard grade petrol (E10) and for standard grade diesel (B7). The figures are supplied by the major retailers under a voluntary scheme launched by the Competition and Markets Authority to ensure motorists are given a fair deal at the petrol pumps.
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Most of the major petrol retailers have signed up to the scheme and the petrol stations supplying up-to-date information account for around 60 per cent of the fuel sold in the UK. The data is updated every day by the retailers and can be downloaded on this government site, https://www.gov.uk/guidance/access-fuel-price-data. The prices quoted are those supplied by retailers as of Saturday 18th November, 2023 at 4:45am.
Anglesey
The cheapest place on Anglesey to fill up your car with petrol is at a Tesco garage in Tref Cybi. According to the latest data supplied by retailers, a driver in an average family car could save up to £2.20 by filling up at this forecourt, compared to the most expensive petrol station.
The Tesco garage at Penrhos Industrial Estate Penrhos Holyhead, Tref Cybi is charging motorists 149.9p per litre, which means it would cost £82.45 to fill up an average 55 litre tank. This is based on a new feed of live petrol prices which was set up by the UK Government's Competition and Markets Authority in September.
The average price for a litre of petrol across Anglesey region this week is 151.9p. Here are the Cheapest places to top your car with petrol on Anglesey:
- 149.9p - Tesco, Penrhos Industrial Estate Penrhos Holyhead, Tref Cybi, Isle of Anglesey
- 151.9p - Morrisons, Penrhos, Tref Cybi, Isle of Anglesey
- 153.9p - Shell, Mona Road, Aethwy, Isle of Anglesey
For the owners of diesel cars, the cheapest place to fill up is also the Tesco garage at Tref Cybi. The cost of a litre of standard diesel at this forecourt was 155.9p, according to prices supplied by retailers.
Here are the cheapest places to fill up your car with standard diesel on Anglesey this weekend:
- 155.9p - Tesco, Penrhos Industrial Estate Penrhos Holyhead, Tref Cybi, Isle of Anglesey
- 158.9p - Morrisons, Penrhos, Tref Cybi, Isle of Anglesey
- 161.9p - Shell, Mona Road, Aethwy, Isle of Anglesey
On Anglesey owners of petrol cars are currently being charged 1.3p more than the national average of 150.6p. Diesel car drivers on Anglesey are paying 0.2p more than the national average.
Gwynedd
The cheapest place in Gwynedd to fill up your car with petrol is at a Tesco garage in Gorllewin Porthmadog. According to the latest data supplied by retailers, a driver in an average family car could save up to £4.95 by filling up at this forecourt, compared to the most expensive petrol station.
The Tesco garage at Stryd Fawr Porthmadog, Gorllewin Porthmadog, is charging motorists 143.9p per litre, which means it would cost £79.15 to fill up an average 55 litre tank. This is based on a new feed of live petrol prices which was set up by the government's Competition and Markets Authority in September.
The average price for a litre of petrol across the Gwynedd region this week is 147.4p. Here are the Cheapest places to top your car with petrol in Gwynedd:
- 143.9p - Tesco, Stryd Fawr Porthmadog, Gorllewin Porthmadog, Gwynedd
- 144.9p - Shell, Porthmadog, Dwyrain Porthmadog, Gwynedd
- 146.7p - Asda, Farrar Road, Canol Bangor, Gwynedd
- 147.9p - Tesco, Caernarfon Road Bangor, Dewi, Gwynedd
- 152.9p - Morrisons, North Road, Menai, Gwynedd
For the owners of diesel cars, the cheapest place to fill up is the Asda garage at Canol Bangor. The cost of a litre of standard diesel at this forecourt was 153.7p, according to prices supplied by retailers.
Here are the cheapest places to fill up your car with standard diesel in Gwynedd this weekend:
- 153.7p - Asda, Farrar Road, Canol Bangor, Gwynedd
- 153.9p - Tesco, Caernarfon Road Bangor, Dewi, Gwynedd
- 155.9p - Tesco, Stryd Fawr Porthmadog, Gorllewin Porthmadog, Gwynedd
- 156.9p - Shell, Porthmadog, Dwyrain Porthmadog, Gwynedd
- 159.9p - Morrisons, North Road, Menai, Gwynedd
In Gwynedd owners of petrol cars are currently being charged 3.3p less than the national average of 150.6p. Diesel car drivers in Gwynedd are paying 2.6p less than the national average.
Conwy
The cheapest place in Conwy to fill up your car with petrol is at a Tesco garage in Glyn y Marl. According to the latest data supplied by retailers, a driver in an average family car could save up to £5.50 by filling up at this forecourt, compared to the most expensive petrol station.
The Tesco garage at 6 G Road Llandudno Junction, Glyn y Marl is charging motorists 149.9p per litre, which means it would cost £82.45 to fill up an average 55 litre tank. This is based on a new feed of live petrol prices which was set up by the government's Competition and Markets Authority in September.
The average price for a litre of petrol across the Conwy region this week is 154.6p. Here are the Cheapest places to top your car with petrol in Conwy:
- 149.9p - Tesco, 6 G Road Llandudno Junction, Glyn y Marl, Conwy
- 152.7p - Asda, Conway Road, Tudno, Conwy
- 152.9p - Shell, Orme View, Penmaenmawr, Conwy
- 153.7p - Asda, St Asaph Avenue North, Kinmel Bay, Conwy
- 153.9p - BP, Dingle Hill, Glyn, Conwy
- 153.9p - Texaco, Princes Drive, Rhiw, Conwy
- 158.9p - Shell, Conway Road, Llansanffraid, Conwy
- 159.9p - Shell, Waterloo Bridge, Betws-y-Coed and Trefriw, Conwy
- 159.9p - Shell, A55 Interchange Abergele Road, Gele and Llanddulas, Conwy
For the owners of diesel cars, the cheapest place to fill up is the Tesco garage at Betws-y-Coed and Trefriw. The cost of a litre of standard diesel at this forecourt was 157.9p, according to prices supplied by retailers.
Here are the cheapest places to fill up your car with standard diesel in Conwy this weekend:
- 157.9p - Tesco, 6 G Road Llandudno Junction, Glyn y Marl, Conwy
- 159.7p - Asda, Conway Road, Tudno, Conwy
- 159.7p - Asda, St Asaph Avenue North, Kinmel Bay, Conwy
- 159.9p - BP, Dingle Hill, Glyn, Conwy
- 159.9p - Texaco, Princes Drive, Rhiw, Conwy
- 161.9p - Shell, Orme View, Penmaenmawr, Conwy
- 166.9p - Shell, Conway Road, Llansanffraid, Conwy
- 167.9p - Shell, Waterloo Bridge, Betws-y-Coed and Trefriw, Conwy
- 168.9p - Shell, A55 Interchange Abergele Road, Gele and Llanddulas, Conwy
In Conwy owners of petrol cars are currently being charged 4.5p more than the national average of 150.6p. Diesel car drivers in Conwy are paying 3.8p more than the national average.
Denbighshire
The cheapest place in Denbighshire to fill up your car with petrol is at a Tesco garage in Prestatyn East. According to the latest data supplied by retailers, a driver in an average family car could save up to £4.35 by filling up at this forecourt, compared to the most expensive petrol station.
The Tesco garage at Stores Prestatyn Shopping Park Nant Hall Road Prestatyn, Prestatyn East, is charging motorists 149.9p per litre, which means it would cost £82.45 to fill up an average 55 litre tank. This is based on a new feed of live petrol prices which was set up by the government's Competition and Markets Authority in September.
The average price for a litre of petrol across the Denbighshire region this week is 154.2p. Here are the Cheapest places to top your car with petrol in Denbighshire:
- 149.9p - Tesco, Stores Prestatyn Shopping Park Nant Hall Road Prestatyn, Prestatyn East, Denbighshire
- 151.9p - Sainsbury's, Rhyl Road, Rhuddlan, Denbighshire
- 151.9p - BP, Prestatyn, Prestatyn East, Denbighshire
- 152.7p - Morrisons, Marsh Road, Rhyl South West, Denbighshire
- 152.9p - Morrisons, Smithfield Road, Denbigh Caledfryn Henllan, Denbighshire
- 152.9p - Texaco, Rhyl Road, Rhuddlan, Denbighshire
- 154.9p - Texaco, Park Road, RuthinLower, Denbighshire
- 157.8p - Applegreen, The Roe, St Asaph West, Denbighshire
In Denbighshire owners of petrol cars are currently being charged 2.5p more than the national average of 150.6p. Diesel car drivers in Denbighshire are paying 2.3p more than the national average.
Flintshire
The cheapest place in Flintshire to fill up your car with petrol is at a Applegreen garage in Mold East. According to the latest data supplied by retailers, a driver in an average family car could save up to £8.30 by filling up at this forecourt, compared to the most expensive petrol station.
The Applegreen garage at King Street, Mold East is charging motorists 149.8p per litre, which means it would cost £82.39 to fill up an average 55 litre tank. This is based on a new feed of live petrol prices which was set up by the government's Competition and Markets Authority in September.
In Flintshire owners of petrol cars are currently being charged 4.1p more than the national average of 150.6p. Diesel car drivers in Flintshire are paying 2.5p more than the national average.
Wrexham
The cheapest place in Wrexham to fill up your car with petrol is at a Tesco garage in Wynnstay. According to the latest data supplied by retailers, a driver in an average family car could save up to £4.40 by filling up at this forecourt, compared to the most expensive petrol station.
The Tesco garage at Crescent Road Wrexham, Wynnstay is charging motorists 147.9p per litre, which means it would cost £81.35 to fill up an average 55 litre tank. This is based on a new feed of live petrol prices which was set up by the government's Competition and Markets Authority in September.
The average price for a litre of petrol across the Wrexham region this week is 151.6p. In Wrexham owners of petrol cars are currently being charged 0.0p more than the national average of 150.6p. Diesel car drivers in Wrexham are paying 4.0p less than the national average.
The cheapest place to buy petrol in the UK is at a Sainsbury's garage in Causeway Coast and Glens where a litre of standard petrol is 138.9p. The most expensive petrol station in the country is a BP garage in Tandridge where motorists are charged 182.9p a litre.
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