Get DirectionsUpdated: 23 May 2026 at 10:01Current 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: £144/month • National: £145/month
E10 Price Ranking
Around average
Out of 10 stations within 5 miles
E10 Price Position in Carmarthen
More expensive than 75% of local stations
Local price range (Carmarthen): E10 prices range from 155.9p to 159.9p across stations within 5 miles.
Fuel Price Comparison - Carmarthen Area
Swipe to see more stations
| Sites | This Site |  |  |  | |  |  | |  | |
|---|---|---|---|---|---|---|---|---|---|---|
| E10 | 158.9 19 minutes ago | 158.9 19 minutes ago | 156.9-2.0p 19 minutes ago | 158.9 20 minutes ago | 156.9-2.0p 20 minutes ago | 159.9+1.0p 20 minutes ago | 155.9-3.0p 20 minutes ago | 156.9-2.0p 20 minutes ago | 159.9+1.0p 19 minutes ago | 155.9-3.0p 20 minutes ago |
| E5 | 167.9 19 minutes ago | N/A | 181.9+14.0p 19 minutes ago | 169.9+2.0p 20 minutes ago | 164.5-3.4p 20 minutes ago | 189.9+22.0p 20 minutes ago | N/A | 164.5-3.4p 20 minutes ago | N/A | 168.9+1.0p 20 minutes ago |
| DSL | 179.9 19 minutes ago | 184.9+5.0p 19 minutes ago | 179.9 19 minutes ago | 179.9 20 minutes ago | 179.9 20 minutes ago | 183.9+4.0p 20 minutes ago | 184.9+5.0p 20 minutes ago | 179.9 20 minutes ago | 183.9+4.0p 19 minutes ago | 175.9-4.0p 20 minutes ago |
| PRM B7 | N/A | N/A | N/A | N/A | 187.5 20 minutes ago | 214.9 20 minutes ago | N/A | 187.5 20 minutes ago | N/A | 158.9 20 minutes ago |
| PRM | N/A | 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 | N/A | 204.9 19 minutes ago | N/A |
| B10 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Nearby Petrol Stations in Carmarthen
9 stations within 5 milesCompare fuel prices at nearby petrol stations to find the best deal.
Murco
C K's Supermarket, Old St. Clears Road, Johnstown, Carmarthen - SA31 3HL
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
Valero
Lysonnen Road, Carmarthen, Carmarthen - SA33 5DT
Esso
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): 167.9p, Diesel(B7): 179.9p, Unleaded(E10): 158.9p. 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 1.0p higher than the local average of 157.9p. There are 10 stations within 5 miles, with prices ranging from 155.9p to 159.9p.
How do Tesco Carmarthen prices compare to the UK national average?
E10 petrol at Tesco Tesco Stores, Lon Morfa, Caerfyrddin is 0.4p lower than the UK national average of 159.3p per litre. Nationally, E10 prices range from 123.5p to 239.9p.
What types of fuel are available at Tesco Carmarthen?
Tesco Tesco Stores, Lon Morfa, Caerfyrddin offers the following fuel types: Premium Unleaded(E5), Diesel(B7), Unleaded(E10). 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 6th cheapest station out of 10 petrol stations within 5 miles for E10 petrol.
What other petrol stations are near Tesco Carmarthen?
The nearest alternative petrol stations to Tesco Tesco Stores, Lon Morfa, Caerfyrddin are: Murco (0.5 miles away), Texaco (0.6 miles away), Morrisons (0.7 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.
Are the Tesco fuel prices on FuelSpy live?
Prices for Tesco Tesco Stores, Lon Morfa, Caerfyrddin are sourced from the UK Government's Temporary Road Fuel Price Open Data Scheme on gov.uk and refreshed approximately every 30 minutes. Forecourt prices can change between updates, so we show the latest reported value.
What payment methods does Tesco Carmarthen accept?
Most Tesco forecourts accept all major credit and debit cards (Visa, Mastercard, American Express), contactless and mobile payments (Apple Pay, Google Pay), and fuel cards. Confirm with the station for cash or loyalty-card specifics.
When is the cheapest time to buy fuel in Carmarthen?
Wholesale fuel costs shift weekly, so retail prices in Carmarthen often move on Mondays and Tuesdays. Filling up mid-week — before forecourts react to weekend demand — typically gives the best price. Use FuelSpy to compare live prices before you set off.
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 9 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.
