Cheapest Fuel in Carmarthen/Caerfyrddin
Carmarthenshire · 10 stations within 5 miles
Prices may have moved since, so check before you travel.
Stations near Carmarthen/Caerfyrddin
Stations here change their unleaded price every 4 days on average.
Stations here change their diesel price every 3 days on average.
| Station | Unleaded | Diesel | Distance |
|---|---|---|---|
| 165.9p | 193.9p | 0.6 mi | |
| 165.9p | 193.9p | 3.5 mi | |
|
Vst Towy Services Station
5 days ago
Towy Service Station, The Bridge, Caerfyrddin, SA31 2BN, Caerfyrddin
|
167.9p | 197.9p | 0.5 mi |
| 167.9p | 194.9p | 1.1 mi | |
| 167.9p | 196.9p | 3.4 mi | |
| 169.9p | 195.9p | 0.8 mi | |
|
Oil 4 Wales Ltd Nantycaws
5 days ago
Nantycaws Filling Station Ltd, Llanddarog Road, Caerfyrddin, SA32 8BG, Caerfyrddin
|
169.9p | 196.9p | 3.9 mi |
| 170.9p | 195.9p | 4.6 mi | |
| 173.9p | 198.9p | 1.2 mi | |
| 174.9poldLast reported 44 days ago | 199.9poldLast reported 34 days ago | 3.1 mi |
old: last reported more than a month ago.
Premium fuel and the price spread in Carmarthen/Caerfyrddin
How far apart prices are
Cheapest to dearest is 8.0p a litre. Choosing well saves £4.40 on a 55 litre fill.
Tanerdy Garage 0.6 mi
Cheapest to dearest is 5.0p a litre. Choosing well saves £2.75 on a 55 litre fill.
Tanerdy Garage 0.6 mi
Premium grades
Vst Towy Services Station, 0.5 mi (last reported 13 days ago).
Super unleaded costs 14.0p a litre more than unleaded here.
Prices in Carmarthen/Caerfyrddin over time
Average unleaded price in Carmarthen/Caerfyrddin each day over the last 30 days, against the UK average
The line is the average of the prices on record each day; the figures below compare the same stations on both dates.
Figures to 2 November 2026.
Unleaded in Carmarthen/Caerfyrddin is down 1.5p this week. It is down 4.6p over 30 days and up 8.7p over 90 days.
Most often cheapest
Gwalia Garage has been the cheapest unleaded in Carmarthen/Caerfyrddin on 38 of the last 90 days.
Diesel in Carmarthen/Caerfyrddin is down 0.4p this week. It is down 3.6p over 30 days and up 16.6p over 90 days.
Most often cheapest
Tanerdy Garage has been the cheapest diesel in Carmarthen/Caerfyrddin on 36 of the last 90 days.
Worth a drive from Carmarthen/Caerfyrddin?
Prices in the nearest towns, measured from the town centre, after the fuel the round trip itself burns at typical mpg.
No town near Carmarthen/Caerfyrddin beats it on unleaded once you count the drive.
No town near Carmarthen/Caerfyrddin beats it on diesel once you count the drive.
Open 24 hours in Carmarthen/Caerfyrddin
4 of the stations within 5 miles are open around the clock.
The cheapest 24-hour unleaded is Vst Towy Services Station at 167.9p (last reported 5 days ago), 0.5 mi.
The cheapest 24-hour diesel is MFG Morrisons Carmarthen at 194.9p (last reported 15 days ago), 1.1 mi.
Facilities in Carmarthen/Caerfyrddin
Across the stations within 5 miles. AdBlue pumps, LPG and HVO are the hard ones to find, so those name a station.
-
AdBlue pumps 3 stations
Cheapest: MFG Morrisons Carmarthen, 194.9p (last reported 15 days ago), 1.1 mi
-
AdBlue (packaged) 7 stations
-
Car wash 3 stations
-
Toilets 5 stations
-
Air pump / screenwash 8 stations
-
Water filling 5 stations
Some of these details come from OpenStreetMap, © OpenStreetMap contributors, under the Open Database Licence.
Something to eat near the cheapest
At or near the three cheapest unleaded forecourts in Carmarthen/Caerfyrddin.
- Tanerdy Garage: Tanerdy Garage and Shop on site, rated 5 for food hygiene (inspected Jan 2026).
- Vst Towy Services Station: Towy Service Station on site, rated 4 for food hygiene (inspected Sep 2026).
Hygiene ratings: Food Standards Agency. About this data.
Brands in Carmarthen/Caerfyrddin
2 of 10 stations are supermarket forecourts.
Across the stations within 5 miles, supermarket forecourts average 0.2p more on unleaded than the branded ones, on prices reported over the last 19 days.
Across the stations within 5 miles, supermarket forecourts average 0.8p less on diesel than the branded ones, on prices reported over the last 19 days.
Sorted by average unleaded
-
Murco 4 stations
Average unleaded 169.2p (on prices reported over the last 19 days); cheapest Tanerdy Garage at 165.9p, 0.6 mi
Average diesel 195.7p (on prices reported over the last 19 days); cheapest Tanerdy Garage at 193.9p (last reported 4 days ago), 0.6 mi
-
Morrisons 1 station
Unleaded at MFG Morrisons Carmarthen: 167.9p, 1.1 mi
Diesel at MFG Morrisons Carmarthen: 194.9p (last reported 15 days ago), 1.1 mi
-
Texaco 1 station
Unleaded at Vst Towy Services Station: 167.9p (last reported 5 days ago), 0.5 mi
Diesel at Vst Towy Services Station: 197.9p (last reported 13 days ago), 0.5 mi
-
Valero 1 station
Unleaded at Ascona Tenby Road Service Station: 167.9p (last reported 3 days ago), 3.4 mi
Diesel at Ascona Tenby Road Service Station: 196.9p (last reported 12 days ago), 3.4 mi
-
Tesco 1 station
Unleaded at Carmarthen Extra: 169.9p, 0.8 mi
Diesel at Carmarthen Extra: 195.9p (last reported 3 days ago), 0.8 mi
-
Independent and unbranded 1 station
Loyalty schemes
- Morrisons More members collect points on fuel by scanning their More Card or the Morrisons More app when they pay.
- Texaco Star Rewards members collect points at participating forecourts by handing over their card at the till, or tapping the key fob or app card on the reader.
- Tesco Clubcard holders collect points on fuel by scanning their card or the Tesco app when they pay, at Tesco petrol stations and at Esso sites with a Tesco Express.
Schemes change and not every forecourt takes part, so check with the retailer before you count on one.
Common questions about fuel in Carmarthen/Caerfyrddin
How much is unleaded in Carmarthen/Caerfyrddin?
The cheapest unleaded in Carmarthen/Caerfyrddin is 165.9p a litre at Tanerdy Garage. That is 5.8p below the UK average. Across the stations within 5 miles, unleaded runs from 165.9p to 173.9p a litre.
How much is diesel in Carmarthen/Caerfyrddin?
The cheapest diesel in Carmarthen/Caerfyrddin is 193.9p a litre at Tanerdy Garage (last reported 4 days ago). That is 4.5p below the UK average. Across the stations within 5 miles, diesel runs from 193.9p to 198.9p a litre.
Which station is cheapest for unleaded in Carmarthen/Caerfyrddin?
Right now Tanerdy Garage has the cheapest unleaded in Carmarthen/Caerfyrddin, at 165.9p a litre. It is 0.6 miles from the centre.
Is fuel cheaper in Carmarthen/Caerfyrddin than Kidwelly/Cydweli?
Yes. Unleaded is 3.0p a litre cheaper in Carmarthen/Caerfyrddin than in Kidwelly/Cydweli. The cheapest in Carmarthen/Caerfyrddin is 165.9p at Tanerdy Garage; in Kidwelly/Cydweli it is 168.9p at Asda Pontyates Express Petrol (last reported 5 days ago). Diesel is 1.0p a litre cheaper in Carmarthen/Caerfyrddin than in Kidwelly/Cydweli. The cheapest in Carmarthen/Caerfyrddin is 193.9p at Tanerdy Garage (last reported 4 days ago); in Kidwelly/Cydweli it is 194.9p at Asda Pontyates Express Petrol (last reported 5 days ago).
Are there 24-hour petrol stations in Carmarthen/Caerfyrddin?
Yes. 4 of the stations within 5 miles are open 24 hours. The cheapest 24-hour unleaded is at Vst Towy Services Station, 0.5 miles from the centre, for 167.9p a litre (last reported 5 days ago). The cheapest 24-hour diesel is at MFG Morrisons Carmarthen, 1.1 miles from the centre, for 194.9p a litre (last reported 15 days ago).
Where can I get AdBlue at the pump in Carmarthen/Caerfyrddin?
3 of the stations within 5 miles have AdBlue at the pump. The cheapest diesel among them is at MFG Morrisons Carmarthen, 1.1 miles from the centre, for 194.9p a litre (last reported 15 days ago).