Get DirectionsUpdated: 18 February 2026 at 22:37Current Fuel Prices
Fuel Cost Calculator
Calculate the cost to fill up at Tesco Carmarthen and compare with nearby stations to find the cheapest fuel in your area.
Monthly Fuel Cost (E10)
Based on 800 miles/month at 40 MPG
Local avg: £115/month • National: £121/month
E10 Price Ranking
Among the cheapest!
Out of 8 stations within 5 miles
E10 Price Position in Carmarthen
Cheaper than 77% of local stations
Local price range (Carmarthen): E10 prices range from 125.6p to 126.9p across stations within 5 miles.
Fuel Price Comparison - Carmarthen Area
Swipe to see more stations
| Sites | This Site |  |  |  |  |  | | | |
|---|---|---|---|---|---|---|---|---|---|
| E10 | 125.9 3 days ago | 125.6-0.3p 3 days ago | 126.9+1.0p 3 days ago | 125.9 3 days ago | 126.9+1.0p 3 days ago | N/A | 125.9 3 days ago | 126.7+0.8p 3 days ago | 125.9 3 days ago |
| E5 | 134.9 3 days ago | 155.9+21.0p 3 days ago | 145.9+11.0p 3 days ago | 133.5-1.4p 3 days ago | 169.9+35.0p 3 days ago | N/A | 133.5-1.4p 3 days ago | N/A | 154.9+20.0p 3 days ago |
| DSL | 136.9 3 days ago | 136.6-0.3p 3 days ago | 136.9 3 days ago | 136.9 3 days ago | 136.9 3 days ago | N/A | 136.9 3 days ago | 137.7+0.8p 3 days ago | N/A |
| PRM B7 | N/A | N/A | N/A | 143.5 3 days ago | 174.9 3 days ago | N/A | 143.5 3 days ago | N/A | 136.9 3 days ago |
| PRM | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| HVO | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 169.9 3 days ago | N/A |
| B10 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Nearby Petrol Stations in Carmarthen
8 stations within 5 milesCompare fuel prices at nearby petrol stations to find the best deal.
Texaco
Towy Service Station, The Bridge, Caerfyrddin, Sa31 2bn, Caerfyrddin - SA31 2BN
Morrisons
Parc Pensarn, Carmarthen - SA31 2NF
Murco
Tanerdy Garage, Tanerdy , Carmarthen - SA31 2EY
Ascona
Lysonnen Road, Carmarthen, Carmarthen - SA33 5DT
Asda
A40, Carmarthen, Carmarthen - SA32 7EN
Murco
Gwalia Garage, Rhydargaeau, Carmarthen - SA32 7DR
Oil 4 Wales Ltd
Nantycaws Filling Station Ltd, Llanddarog Road, Caerfyrddin, Sa32 8bg, Caerfyrddin - SA32 8BG
Murco
Derwydd Garage, Cynwyl Elfed, Carmarthen, Sa33 6tp, Carmarthen - SA33 6TP
Frequently Asked Questions
Common questions about Tesco Carmarthen petrol station
What are the current fuel prices at Tesco in Carmarthen?
The current fuel prices at Tesco Tesco Stores, Lon Morfa, Caerfyrddin, SA31 3AX are: Premium Unleaded(E5): 134.9p, Unleaded(E10): 125.9p, Diesel(B7): 136.9p. Prices are updated regularly throughout the day.
Is Tesco Carmarthen cheaper than nearby petrol stations?
E10 petrol at Tesco Tesco Stores, Lon Morfa, Caerfyrddin is currently 0.3p lower than the local average of 126.2p. There are 8 stations within 5 miles, with prices ranging from 125.6p to 126.9p.
How do Tesco Carmarthen prices compare to the UK national average?
E10 petrol at Tesco Tesco Stores, Lon Morfa, Caerfyrddin is 6.6p lower than the UK national average of 132.5p per litre. Nationally, E10 prices range from 102.9p to 490.0p.
What types of fuel are available at Tesco Carmarthen?
Tesco Tesco Stores, Lon Morfa, Caerfyrddin offers the following fuel types: Premium Unleaded(E5), Unleaded(E10), Diesel(B7). All fuels meet UK quality standards and are regularly tested for compliance.
Is Tesco Carmarthen one of the cheapest petrol stations nearby?
Tesco Tesco Stores, Lon Morfa, Caerfyrddin is the 2nd cheapest station out of 8 petrol stations within 5 miles for E10 petrol. This makes it one of the most affordable options in the area.
What other petrol stations are near Tesco Carmarthen?
The nearest alternative petrol stations to Tesco Tesco Stores, Lon Morfa, Caerfyrddin are: Texaco (0.6 miles away), Morrisons (0.7 miles away), Murco (1.4 miles away). You can compare prices at these stations to find the best deal in the Carmarthen area.
Where is Tesco Carmarthen located?
Tesco Carmarthen is located at Tesco Stores, Lon Morfa, Caerfyrddin, SA31 3AX. The station is easily accessible and offers convenient fuel services for drivers in the Carmarthen area.
How often are fuel prices updated at Tesco Carmarthen?
Fuel prices at Tesco Tesco Stores, Lon Morfa, Caerfyrddin are typically updated daily. Our data is sourced from official price reporting and updated regularly throughout the day to ensure accuracy. We recommend checking back frequently for the latest prices.
About Tesco Fuel Stations
Can I earn Clubcard points on Tesco fuel?
Yes, earn points on every liter purchased, redeemable for discounts or vouchers.
What is Tesco Momentum 99?
A premium unleaded fuel designed for high-performance engines, offering better acceleration.
Are Tesco fuel prices competitive?
Yes, Tesco consistently ranks among the UK's most affordable fuel retailers.
Fuel Prices in Carmarthen
Looking for cheap petrol in Carmarthen? Tesco at Tesco Stores, Lon Morfa, Caerfyrddin offers competitive fuel prices for E10 unleaded, E5 super unleaded, diesel, and premium diesel. Use our comparison tools above to see how this station's prices compare to the local Carmarthen average and the UK national average.
There are 8 other petrol stations within 5 miles of this location. Compare all nearby stations to find the cheapest fuel in SA31 and save money every time you fill up.
Tesco is one of the UK's leading fuel retailers. Our price data is sourced from official UK fuel price reporting systems and updated throughout the day.
