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Cheapest petrol and diesel prices in Caerfyrddin

3 forecourts tracked in Caerfyrddin (3 reporting unleaded (E10), 3 reporting diesel (B7), 2 reporting premium (E5)). Prices last refreshed at 3:03am on 5 November 2026.

The cheapest reported unleaded petrol (E10) in Caerfyrddin is £7.63 a gallon (167.9p per litre) at Tesco, Tesco Stores, Lon Morfa, Caerfyrddin. The average across 3 forecourts currently reporting this grade is £7.66 a gallon (168.6p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £0.35 on a 50-litre fill. That local average is 2.4p per litre below the UK average of 171.0p.

The average has fallen 0.6p per litre since yesterday. The average has fallen 1.3p per litre since last week.

Prices last refreshed at 3:03am on 5 November 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.

At 167.9p per litre, the cheapest unleaded in Caerfyrddin is the lowest we have recorded here in 4 weeks. The Caerfyrddin average has fallen 1.0p a litre over the past week.

Unleaded Prices

Unleaded (E10)

Highest
£7.72/gal169.9p/L
Average
£7.66/gal168.6p/L
Lowest
£7.63/gal167.9p/L

Diesel Prices

Diesel (B7)

Highest
£8.95/gal196.9p/L
Average
£8.92/gal196.2p/L
Lowest
£8.91/gal195.9p/L

Premium Unleaded Prices

Premium Unleaded (E5)

Highest
£8.63/gal189.9p/L
Average
£8.36/gal183.9p/L
Lowest
£8.09/gal177.9p/L

Super Diesel Prices

Super Diesel (SDV)

Not enough current price data.

All forecourts in Caerfyrddin

3 forecourts in Caerfyrddin, with live prices and full addresses. Showing 1 to 3.

Texaco logo
Cheapest unleaded e10Vst Towy Services Station

Towy Service Station, The Bridge, Caerfyrddin, SA31 2BN, Caerfyrddin · SA31 2BN

Usually cheapest 10pm to 11pm, priciest midnight to 5am here

Directions
£7.63 per gallon, 167.9 pence per litre

Diesel B7

£8.91 per gallon, 195.9 pence per litre

Premium E5

£8.63 per gallon, 189.9 pence per litre
Tesco logo
Carmarthen Extra - Petrol Filling Station

Tesco Stores, Lon Morfa, Caerfyrddin · SA31 3AX

Usually cheapest 4pm to 9pm, priciest midnight to 5am here

Directions
£7.63 per gallon, 167.9 pence per litre

Diesel B7

£8.91 per gallon, 195.9 pence per litre

Premium E5

£8.09 per gallon, 177.9 pence per litre
Oil 4 Wales Ltd Nantycaws

Nantycaws Filling Station Ltd, Llanddarog Road, Caerfyrddin, SA32 8BG, Caerfyrddin · SA32 8BG

Directions
£7.72 per gallon, 169.9 pence per litre

Diesel B7

£8.95 per gallon, 196.9 pence per litre

Search near Caerfyrddin

Ask the fuel analyst

Answers come straight from recorded official price data, refreshed every 30 minutes.

Cheapest reported unleaded

Tesco

Tesco Stores, Lon Morfa, Caerfyrddin

167.9p/L

Cheapest reported diesel

Tesco

Tesco Stores, Lon Morfa, Caerfyrddin

195.9p/L

Prices are sourced from official UK government fuel-price data (Open Government Licence v3.0). Updated every 30 minutes.

Questions about fuel prices in Caerfyrddin

What is the average petrol price in Caerfyrddin?
The average unleaded (E10) petrol price in Caerfyrddin is currently 168.6p per litre (approx. £7.66/gal), based on live data from 3 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.
What is the average diesel price in Caerfyrddin?
The average diesel (B7) price in Caerfyrddin is currently 196.2p per litre (approx. £8.92/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
Which is the cheapest petrol station in Caerfyrddin?
Tesco at Tesco Stores, Lon Morfa, Caerfyrddin currently has the cheapest reported unleaded petrol in Caerfyrddin at 167.9p per litre (approx. £7.63/gal). Prices change regularly, so check this page for the latest.
Which is the most expensive petrol station in Caerfyrddin?
According to official UK government fuel price data, Oil 4 Wales Ltd Nantycaws (SA32 8BG) currently has the highest reported unleaded (E10) price in Caerfyrddin at 169.9p per litre (approx. £7.72/gal). Prices are refreshed every 30 minutes, so this can change through the day.
How do I find the cheapest fuel near Caerfyrddin?
Use the search box above to enter your postcode. fuel.co.uk will show you every forecourt ranked cheapest first, with live prices updated every 30 minutes from the GOV.UK Fuel Finder.