Question 1

What fuel types are sold in Carmarthenshire?

Accepted Answer

Forecourts in Carmarthenshire that publish to the national feed list Super Unleaded (E5), Unleaded (E10), Diesel (B7), Premium Diesel and Biodiesel (B10). Not every station carries every grade — use the cheapest-by-fuel sections above to see which forecourt has the variant you need.

Question 2

What's the average price of super unleaded (E5) in Carmarthenshire?

Accepted Answer

Super Unleaded (E5) in Carmarthenshire is averaging 180.0p per litre across the forecourts publishing to the national feed, with the cheapest at 163.9p and the priciest at 189.9p.

Question 3

What's the average price of unleaded (E10) in Carmarthenshire?

Accepted Answer

Unleaded (E10) in Carmarthenshire is averaging 165.6p per litre across the forecourts publishing to the national feed, with the cheapest at 158.9p and the priciest at 171.5p.

Question 4

What's the average price of diesel (B7) in Carmarthenshire?

Accepted Answer

Diesel (B7) in Carmarthenshire is averaging 186.3p per litre across the forecourts publishing to the national feed, with the cheapest at 179.9p and the priciest at 194.9p.

Question 5

What's the average price of premium diesel in Carmarthenshire?

Accepted Answer

Premium Diesel in Carmarthenshire is averaging 199.8p per litre across the forecourts publishing to the national feed, with the cheapest at 191.5p and the priciest at 209.9p.

Question 6

What's the average price of biodiesel (B10) in Carmarthenshire?

Accepted Answer

Biodiesel (B10) in Carmarthenshire is averaging 199.9p per litre across the forecourts publishing to the national feed, with the cheapest at 199.9p and the priciest at 199.9p.

Question 7

Where can I get the cheapest super unleaded (E5) in Carmarthenshire?

Accepted Answer

MURCO GWALIA GARAGE (CARMARTHEN, SA32 7DR) is currently the cheapest super unleaded (E5) in Carmarthenshire at 163.9p per litre, with the price last updated yesterday at 12:46. Tap the "Cheapest super unleaded (E5)" section above for the full ranking.

Question 8

Where can I get the cheapest unleaded (E10) in Carmarthenshire?

Accepted Answer

ESSO GLANDYCROSS SERVICE STATION (CLYNDERWEN, SA66 7XB) is currently the cheapest unleaded (E10) in Carmarthenshire at 158.9p per litre, with the price last updated 28 Aug. Tap the "Cheapest unleaded (E10)" section above for the full ranking.

Question 9

Where can I get the cheapest diesel (B7) in Carmarthenshire?

Accepted Answer

TESCO AMMANFORD SUPERSTORE - PETROL FILLING STATION (RHYDAMAN, SA18 2LR) is currently the cheapest diesel (B7) in Carmarthenshire at 179.9p per litre, with the price last updated 04 Sept. Tap the "Cheapest diesel (B7)" section above for the full ranking.

Question 10

Where can I get the cheapest premium diesel in Carmarthenshire?

Accepted Answer

MURCO GWALIA GARAGE (CARMARTHEN, SA32 7DR) is currently the cheapest premium diesel in Carmarthenshire at 191.5p per litre, with the price last updated 05 Sept. Tap the "Cheapest premium diesel" section above for the full ranking.

Question 11

Where can I get the cheapest biodiesel (B10) in Carmarthenshire?

Accepted Answer

TEXACO  VST PONTAMMAN SERVICE STATION (AMMANFORD, SA18 2HX) is currently the cheapest biodiesel (B10) in Carmarthenshire at 199.9p per litre, with the price last updated 2 hours ago. Tap the "Cheapest biodiesel (B10)" section above for the full ranking.

Question 12

Which forecourts sell super unleaded (E5) in Carmarthenshire?

Accepted Answer

Super Unleaded (E5) is only stocked by 3 forecourts in Carmarthenshire: GWALIA GARAGE, AMMANFORD SUPERSTORE - PETROL FILLING STATION and TANERDY GARAGE.

Question 13

Which forecourts sell premium diesel in Carmarthenshire?

Accepted Answer

Premium Diesel is only stocked by 3 forecourts in Carmarthenshire: GWALIA GARAGE, TANERDY GARAGE and NTS LLANELLI SERVICE STATION.

Question 14

Which forecourts sell biodiesel (B10) in Carmarthenshire?

Accepted Answer

Biodiesel (B10) is only stocked by 2 forecourts in Carmarthenshire: VST PONTAMMAN SERVICE STATION and VST PARKSTREET FILLING STATION.

Question 15

How often are fuel prices in Carmarthenshire updated?

Accepted Answer

UK retailers must publish any pump-price change to the CMA-mandated national feed within 30 minutes. FuelFox re-polls that feed every 30 minutes too, so a price you see is at most about an hour old and usually fresher. Each forecourt card shows a freshness pill — tap it for the exact update time.

Fuel prices in Carmarthenshire (county)

By fuel type

Cheapest super unleaded (E5) in Carmarthenshire

Cheapest unleaded (E10) in Carmarthenshire

Cheapest diesel (B7) in Carmarthenshire

Cheapest premium diesel in Carmarthenshire

Cheapest biodiesel (B10) in Carmarthenshire

FAQ

Fuel	Cheapest	Average	Highest
Super Unleaded (E5)	163.9p	180.0p	189.9p
Unleaded (E10)	158.9p	165.6p	171.5p
Diesel (B7)	179.9p	186.3p	194.9p
Premium Diesel	191.5p	199.8p	209.9p
Biodiesel (B10)	199.9p	199.9p	199.9p