Cheapest unleaded
165.9p
Fuel prices in SA31 today, 4 November 2026
Live petrol and diesel prices at 5 stations in the SA31 postcode area, cheapest first, from the government's Fuel Finder open data.
Cheapest diesel
193.9p
Avg unleaded (SA31)
167.9p
Avg diesel (SA31)
195.5p
5 fuel stations in the SA31 postcode area report pump prices to the government's Fuel Finder scheme. Unleaded runs from 165.9p at Murco up to 168.9p, a 3.0p gap across SA31, so it pays to check before you fill up. On average SA31 is 2.8p cheaper than the UK as a whole.
Murco
Tanerdy Garage, Tanerdy, Carmarthen
SA31 2EY
Price last reported 26 Sept
Air · Water
Unleaded165.9p
Diesel193.9p
Morrisons
Parc Pensarn, Carmarthen
SA31 2NF
Price last reported 28 Sept
24 hours · Car wash · Air · AdBlue pump
Unleaded167.9p
Diesel194.9p
Tesco
Tesco Stores, Lon Morfa, Caerfyrddin
SA31 3AX
24 hours · Air · Water
Unleaded167.9p
Diesel195.9p
Murco
C K'S Supermarket, Old St. Clears Road, Johnstown, Carmarthen
SA31 3HL
Air · Toilets
Unleaded168.9p
Diesel196.9p
Texaco
Towy Service Station, The Bridge, Caerfyrddin
SA31 2BN
24 hours · Air
Unleaded168.9p
Diesel195.9p
Data updated 1 minutes ago.
Cheapest fuel in SA31: quick answers
Where is the cheapest petrol in SA31?
The cheapest unleaded in the SA31 postcode area right now is 165.9p per litre at Murco, TANERDY GARAGE, TANERDY, CARMARTHEN. The SA31 average is 167.9p.
Where is the cheapest diesel in SA31?
The lowest diesel price in SA31 is currently 193.9p per litre at Murco, TANERDY GARAGE, TANERDY, CARMARTHEN.