Carmarthen Extra fuel prices

Tesco · SA31 3AX · Carmarthen/Caerfyrddin

Tesco Stores, Lon Morfa, Caerfyrddin

Checking hours…
Updated 2 days ago

Unleaded here is 1.2p above the local average. 5th cheapest of 6 within 3 miles. Vst Towy Services Station, 0.6 miles away, is 2.0p cheaper (price reported 5 days ago). Full comparison

Diesel here is 0.6p below the local average at its last reported price, 3 days ago. 3rd cheapest of 6 within 3 miles. MFG Morrisons Carmarthen, 0.7 miles away, is 1.0p cheaper (price reported 15 days ago). Prices may have moved since, so check before you travel. Full comparison

Jump to: current prices, nearby stations, opening hours, amenities, something to eat, location and directions, how this station compares, price history, where the money goes or common questions.

Current prices at Carmarthen Extra

Unleaded
169.9p
▼ 3.0p this week
2 days ago
Super Unleaded
179.9p
▼ 3.0p this week
2 days ago
Diesel
195.9p
▼ 1.0p this week
3 days ago

How much does it cost to fill up at Carmarthen Extra?

Unleaded
£93.45
Super Unleaded
£98.95
Diesel
£107.75

Planning a trip? Work out a journey's fuel cost.

Petrol stations near SA31 3AX

Station Unleaded
Murco
C K's Supermarket, Old St. Clears Road, Johnstown, Carmarthen
173.9pLast reported 20 days ago
+4.0p dearer
0.5 mi · Diesel 198.9pLast reported 20 days ago +3.0p dearer
Texaco
Towy Service Station, The Bridge, Caerfyrddin, SA31 2BN, Caerfyrddin
167.9pLast reported 5 days ago
-2.0p cheaper
0.6 mi · Diesel 197.9pLast reported 14 days ago +2.0p dearer
Morrisons
Parc Pensarn, Carmarthen, Carmarthenshire
167.9p
-2.0p cheaper
0.7 mi · Diesel 194.9pLast reported 15 days ago -1.0p cheaper
Murco
Tanerdy Garage, Tanerdy, Carmarthen
165.9pLast reported 3 days ago
-4.0p cheaper
1.4 mi · Diesel 193.9pLast reported 5 days ago -2.0p cheaper
Valero
Lysonnen Road, Carmarthen, Carmarthen, Carmarthenshire
167.9pLast reported 4 days ago
-2.0p cheaper
2.7 mi · Diesel 196.9pLast reported 12 days ago +1.0p dearer

Opening Hours

Monday Open 24 hours
Tuesday Open 24 hours
Wednesday Open 24 hours
Thursday Open 24 hours
Friday Open 24 hours
Saturday Open 24 hours
Sunday Open 24 hours
Bank Holidays Usual hours apply

Amenities

AdBlue (packaged) Air pump / screenwash 24-hour fuel Water filling

Looking for something to eat?

Feeling a bit peckish? Grab something to eat while you fill up. We've gathered local places to eat, along with their food hygiene ratings.

Well-rated food within half a mile

5 out of 5 inspected Oct 2019
5 out of 5 inspected Oct 2025
5 out of 5 inspected Nov 2018
5 out of 5 inspected Jun 2025

Hygiene ratings: Food Standards Agency. About this data.

How Carmarthen Extra fuel prices compare

Unleaded

0.7% more expensive than the 5 stations within 3 miles (+1.2p)

1.0% below the UK average (-1.7p)

0.4% below the Tesco national average (-0.7p)

5th cheapest of 6 for Unleaded within 3 miles

Cheaper nearby: Vst Towy Services Station — 0.6 mi away, save ~84p after the drive

Savings based on a 55 L fill at 44.6 mpg, round trip.

Lowest 169.9p on 30 Oct · Highest 173.9p on 12 Oct

Super Unleaded

4.6% below the UK average (-8.7p)

0.8% below the Tesco national average (-1.4p)

Lowest 179.9p on 30 Oct · Highest 183.9p on 12 Oct

Diesel

0.3% cheaper than the 5 stations within 3 miles (-0.6p)

1.3% below the UK average (-2.5p)

0.2% above the Tesco national average (+0.4p)

3rd cheapest of 6 for Diesel within 3 miles

Cheaper nearby: MFG Morrisons Carmarthen — 0.7 mi away, save ~21p after the drive

Savings based on a 55 L fill at 48.4 mpg, round trip.

Lowest 195.9p on 29 Oct · Highest 198.9p on 12 Oct

Carmarthen Extra price history

Recent price changes

Unleaded and Super Unleaded have fallen 3.0p over the past week and have changed price 5 times in the last 30 days.

Diesel has fallen 1.0p over the past week and has changed price 4 times in the last 30 days.

Date Unleaded Super Unleaded Diesel
In the past week
169.9p −1.0 179.9p −1.0 195.9p
170.9p −1.0 180.9p −1.0 195.9p −1.0
171.9p −1.0 181.9p −1.0 196.9p
Earlier in the last 30 days
172.9p 182.9p 196.9p −1.0
172.9p −1.0 182.9p −1.0 197.9p −1.0
173.9p −1.0 183.9p −1.0 198.9p −1.0
More than 30 days ago
174.9p +1.0 184.9p +1.0 199.9p
173.9p +1.0 183.9p +1.0 199.9p
172.9p 182.9p 199.9p +2.0
172.9p +1.0 182.9p +1.0 197.9p +1.0

One row for each day a price changed. Greyed prices did not change that day. Dates are when the price was submitted, or when we first recorded it if no submission time was supplied.

Where the money goes

About 48% of what you pay for unleaded here is tax. Fuel duty is a flat 52.95p on every litre, and 20% VAT is then charged on the fuel and the duty together. The rest covers the fuel itself, delivery and the retailer's margin.

Per litre Pump price Fuel and retailer Fuel duty VAT
Unleaded 169.9p 88.65p 52.95p 28.30p
Super Unleaded 179.9p 96.95p 52.95p 30.00p
Diesel 195.9p 110.25p 52.95p 32.70p

Duty rate: GOV.UK, checked 13 October 2026.

How fuel duty works

Common questions about Carmarthen Extra

How much is unleaded at Carmarthen Extra?

Unleaded at Carmarthen Extra is 169.9p per litre, last reported on 30 October 2026. That is 1.7p below the UK average. A 55 litre fill costs about £93.45.

How much is diesel at Carmarthen Extra?

Diesel at Carmarthen Extra is 195.9p per litre, last reported on 29 October 2026. That is 2.5p below the UK average. A 55 litre fill costs about £107.75.

Is Carmarthen Extra the cheapest place for unleaded near Carmarthen/Caerfyrddin?

No. Right now Carmarthen Extra is the 5th cheapest of 6 stations for unleaded within 3 miles. Vst Towy Services Station, 0.6 miles away, charges 167.9p, which saves about £0.84 on a 55 litre fill after the cost of driving there and back. That price was reported 5 days ago, so check it before making the trip.

Is Carmarthen Extra open 24 hours?

Yes. Carmarthen Extra is listed as open 24 hours a day, seven days a week.

What fuel and facilities does Carmarthen Extra have?

Carmarthen Extra reports prices for Unleaded, Super Unleaded and Diesel. Facilities listed for the site: AdBlue (packaged), Air pump / screenwash, 24-hour fuel and Water filling.

How often does Carmarthen Extra change its prices?

Unleaded has fallen 3.0p over the past week and has changed price 5 times in the last 30 days.