Christmas is just a few days away and if you’re planning on visiting relatives or friends this week, you may want to fill up your car with petrol sooner rather than later – as that means you’ve got one less thing to worry about in the run-up to the festivities.
Of course, filling up your car can be expensive and it can be frustrating to have to keep a constant eye out on the prices outside petrol stations whilst you’re out and about, in the hopes of spotting a good price and being able to save a few quid. Fortunately, the UK government set up a group in September that’s responsible for monitoring road fuel prices. The Competition and Markets Authority investigates and records fuel prices and reports any sign of malpractice to the government. It aims to help customers across the UK get a fair choice of prices when they buy fuel and forces retailers, including supermarkets, to share the prices they are charging customers on their forecourts.
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On average, UK drivers are currently paying 143.9p per litre of petrol, while people who own diesel vehicles are forking out 152.1p per litre. Nationally, prices have fallen since they reached an all-time high in July, 2022, of 191.55p for petrol and 199.22 for diesel, but have been heading upwards again in recent weeks. Currently, the cheapest place to buy petrol in the UK is at a Sainsbury’s garage in Causeway Coast and Glens in Northern Ireland, where a litre of standard petrol is just 130.9p.
WalesOnline has been able to access the latest data for standard grade petrol (E10) and standard grade diesel (B7) prices across Wales. Enter your post code in the box below to find the cheapest place to fill up near you. Or keep scrolling for the current cheapest place to buy petrol in every one of Wales’ local authority areas, as of Sunday morning. And for the latest Welsh news delivered to your inbox sign up to our newsletter here.
Blaenau Gwent
In Blaenau Gwent, owners of petrol cars are currently being charged 1.3p less than the national average, and drivers of diesels cars are paying 1.2p less than the national average.
The cheapest place to buy petrol in Blaenau Gwent is at the Tesco garage on North West Approach in Ebbw Vale, where petrol is 137.9p per litre. A driver in an average family car could save up to £7.70 by filling up at this forecourt, compared to the most expensive petrol station in the area, Morrisons station at Beaufort Road, Beaufort, where petrol is 151.9p per litre.
The cheapest place in Blaenau Gwent to fill your car up with diesel is also the Tesco garage at North West Approach in Ebbw Vale, where diesel is 145.9p per litre.
Bridgend
The cheapest place to buy petrol in Bridgend county is the Sainsbury’s garage at the Welsh Designer Outlet Village in Coity Higher, Bridgend, where petrol is 136.9p per litre. Here, a driver in an average family car could save up to £2.75, compared to filling up at the most expensive petrol station in the region, Esso at Main Road, Pyle, Kenfig and Cefn Cribwr, where petrol is being sold at 141.9p per litre.
For owners of diesel cars, the cheapest place to fill up is also the Sainsbury’s garage at the Welsh Designer Outlet Village in Coity Higher, where the cost of a litre of standard diesel is 144.9p.
Caerphilly
The Asda garage in High Street, Blackwood is currently the cheapest place to fill up your car with petrol in Caerphilly county. There, petrol costs 137.7p per litre, which means a driver in an average family car could save up to £8.25 by filling up there instead of the most expensive petrol station in the area, Morrisons at Bargoed Gateway, Aberbargoed and Bargoed where petrol is 152.7p per litre.
For owners of diesel cars, the cheapest place to fill up is also the Asda garage at High Street, Blackwood where the cost of a litre of standard diesel is 145.7p.
Cardiff
Asda is consistently the cheapest place to fill up in Cardiff at the moment. The cheapest price is 134.7p per litre for petrol and 143.7p for diesel at their Ferry Road branch. After Asda, it’s Sainsbury’s on Colchester Avenue, where it costs 136.9p per litre for petrol and 144.9p for diesel.
Carmarthenshire
The cheapest place to buy petrol in Carmarthenshire is currently the Asda garage at Murray Street in Tyisha, which is also the cheapest place to fill up your car with diesel. The garage currently charges 136.7p per litre of petrol and 144.7p per litre of diesel.
The most expensive petrol station in Carmarthenshire is currently the Morrisons station at Parc Pensarn, Llangunnor, where petrol is 149.9p per litre.
Ceredigion
The Tesco garage at Aberystwyth Road in Mwldan is currently the cheapest place to fill-up your car with petrol in Ceredigion county. There, petrol is 137.9p per litre, meaning a driver in an average family car could save up to £8.25 by filling up at this petrol station, compared to the most expensive petrol station in the county, Morrisons station at Parcydolau, Llanbadarn Fawr where petrol is 152.9p per litre.
The cheapest place to fill up your car with diesel is also the Tesco at Aberstwyth Road in Mwldan, where a litre of standard diesel is 145.9p.
Conwy
The cheapest place in Conwy county to fill up your car with petrol is the Asda garage at Conwy Road in Tudno. There, a driver in an average family car could save up to £11.11 by filling up at this forecourt, compared to filling up at the most expensive station, the Shell station at A55 Interchange Abergele Road in Gele and Llanddulas.
At the Asda garage at Conwy Road, petrol is 139.7p per litre, whilst the Shell at A55 Interchange Abergele Road is charging 159.9p per litre.
For the owners of diesel cars, the cheapest place to fill up your car with standard diesel is also the Asda garage at Conwy Road in Tudno, where the cost of a litre of standard diesel is 149.7p.
Denbighshire
In Denbighshire, the cheapest place to fill up your car with petrol is at the Applegreen garage at The Roe in St Asaph West. A litre of standard petrol costs 138.8p there, which means a driver in an average family car could save up to £7.76 by filling up at this station, compared to the most expensive petrol station in the county, Morrisons station at Smithfield Road, Denbigh Caledfryn Henllan, where a litre of standard petrol is 152.9p.
For the owners of diesel cars, the cheapest place to fill up is also the Applegreen garage at The Roe, where a litre of standard diesel is currently 145.8p.
Flintshire
The Tesco garage at Broughton Shopping Park in Chester Road is currently the cheapest place to fill your car up with petrol in Flintshire. This garage is charging motorists 138.9p per litre, whilst the most expensive petrol station in the county, the Shell station at Expressway in Northop, is charging 164.9p per litre.
The cheapest place to fill up your car with diesel is also the Tersco garage at Broughton Shopping Park, where the cost of a litre of standard diesel is 146.9p.
Gwynedd
The cheapest place to fill up your car in Gwynedd is the Asda garage at Farrar Road, Canal Bangor, where petrol is 136.7p per litre. The most expensive place to fill up with petrol is the Morrisons station at North Road, Menai, where petrol is 152.9p per litre.
The cheapest place to fill up with diesel is also the Asda at Farrar Road, where a litre of standard diesel is 144.7p.
Isle of Anglesey
The cheapest place to fill up your car on the Isle of Anglesey is the Tesco station at Penrhos Industrial Estate, where petrol is 145.9p per litre. The most expensive filling station in the region is the Shell station at Mona Road, Aethwy, where a litre of standard petrol is 153.9p.
The cheapest place to fill up your car with diesel is also the Tesco petrol station at Penrhos Industrial Estate, where a litre of standard diesel is 145.9p.
Merthyr Tydfil
The cheapest place to top up your car with petrol is the Asda garage at Dowlais Top, where petrol is 141.7p per litre. This garage is also the cheapest place to fill up your car with diesel, a litre of diesel here costs 151.7p.
The most expensive filling station in the region is the Esso station at New Road, Dowlais and Pant, where the cost of a litre of standard petrol is 144.9p.
Monmouthshire
The cheapest place to fill up your car in Monmouthshire is the Texaco garage at Rakestrow, Shirenewton where petrol is 137.9p per litre. The most expensive filling station in Monmouthshire is the Shell station at Cinderhill Street, Overmonnow Road where petrol is 159.9p per litre.
The cheapest place to fill up your car with diesel is the Esso garage at Hereford Road, Grofield, where diesel is 143.9p per litre.
Neath Port Talbot
The cheapest place to fill up your car in Neath Port Talbot is the Texaco garage at Sandfields East in Port Talbot, where petrol is 136.9p per litre. The most expensive petrol station in Neath Port Talbot is the Shell station at Fabian Way, Coedffranc West, where petrol is 156.9p.
The cheapest place in Neath Port Talbot to fill up your car with standard diesel is the Asda petrol station at Glanyrafon, Cwmllynfell and Ystalyfera, where diesel is 145.7p per litre.
Newport
The cheapest place to fill up your car with petrol is at the Sainsbury’s garage at Albany Street, Shaftesbury, where petrol is 136.9p per litre. The most expensive filling station in Newport is the Shell station at Malpas Road, Shaftesbury where petrol is 152.9p per litre.
The cheapest place in Newport to fill up your car with standard diesel is the Tesco garage at Harlech Retail Park in Gaer, where diesel is 145.9p per litre.
Pembrokeshire
In Pembrokeshire, the cheapest place to fill up your car is at the Asda garage at Pembroke Dock Central, where petrol is 136.7p per litre. The most expensive filling station in Pembrokeshire is the the Morrisons garage at Bridge Meadow Lane in Haverfordwest Prendergast. where petrol is 149.9p per litre.
The cheapest place to fill up your car with diesel is also the Asda garage at Pembroke Dock Central, which is currently charging 144.7p per litre.
Powys
The cheapest place to fill up your car in Powys is the Tesco garage on Waterloo Road, Llandrindod South, where petrol is 137.9p per litre. The most expensive petrol station is the Morrisons station at Pool Road, Newtown East where petrol is 152.9p.
The cheapest place in the county to buy diesel is the Tesco at Wind Road in Ystradgynlais, where diesel is 145.9p per litre.
Rhondda Cynon Taf
The cheapest place to fill up your car with petrol in Rhondda Cynon Taf is the Asda garage at Riverside Retail Park in Cwmbach, which is currently charging 136.7p per litre. The most expensive petrol station is the country is the Shell station at Tylacelyn Road, Pen-y-graid, where petrol is 154.9p per litre.
The cheapest place to fill up your car with standard diesel in Rhondda Cynon Taf is the Asda garage at Colliers Way, Llwyn-y-pia, where diesel is 143.7p per litre.
Swansea
Currently, the cheapest place to fill up your car with petrol is at the Texaco garage at Peniel Green Road in Llansamlet, where petrol is 136.0p per litre, meaning a driver filling up the average family car could save more than a tenner (£10.45 to be exact) if filling up at this forecourt, compared to the most expensive petrol station in the area, which is currently the Shell station on Gower Road, Sketty, where petrol is 155.9p per litre.
For owners of diesel cars, the cheapest place to fill up your car with petrol is also the Texaco garage at Peniel Green Road in Llamsamlet, where a litre of standard diesel is 144.9p.
Torfaen
In Torfaen, the cheapest place to fill up your car with petrol is the Sainsbury’s garage at Llewellyn Road, Llantarnam, where petrol is 135.9p per litre. The most expensive filling station in the county is the Morrisons garage in Grange Road, Llantarnam, where petrol is 147.9p per litre.
The cheapest place to buy diesel in Torfaen is also the Sainsbury’s garage at Llewellyn Road, Llantarnam, where diesel is 144.9p per litre.
Vale of Glamorgan
The Tesco garage at Culverhouse Cross in St Nicholas and Llancarfan is the cheapest place to buy petrol in Vale of Glamorgan and petrol there is 142.8p per year. The most expensive filling station in the country is the Morrisons station at Penny Way, Castleland, where petrol is 151.7p per litre.
The cheapest place to fill up your car with diesel in Vale of Glamorgan is also the Tesco garage at St Nicholas and Llancarfan, where diesel is 145.9p per litre.
Wrexham
In Wrexham, the cheapest place to fill up with petrol is the Asda garage in Holt Road, Acton and Maesydre, where petrol is 136.7p per litre. The most expensive filling station in the county is the Shell station at Mold Road, Brynyffynnon, where petrol is 155.9p per litre.
The cheapest place to fill up with diesel in Wrexham is also the Asda garage in Holt Road, where diesel is 144.7p per litre.
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Robert Johnson is a UK-based business writer specializing in finance and entrepreneurship. With an eye for market trends and a keen interest in the corporate world, he offers readers valuable insights into business developments.
