Cks Supermarket fuel prices
Murco · SA31 3HL · Carmarthen/Caerfyrddin
C K's Supermarket, Old St. Clears Road, Johnstown, Carmarthen
Unleaded here is 6.0p above the local average at its last reported price, 20 days ago. 6th cheapest of 6 within 3 miles. Carmarthen Extra, 0.5 miles away, is 4.0p cheaper. Prices may have moved since, so check before you travel. Full comparison
Diesel here is 3.0p above the local average at its last reported price, 20 days ago. 6th cheapest of 6 within 3 miles. Carmarthen Extra, 0.5 miles away, is 3.0p cheaper (price reported 3 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 Cks Supermarket
How much does it cost to fill up at Cks Supermarket?
- Unleaded
- £95.65
- Diesel
- £109.40
Planning a trip? Work out a journey's fuel cost.
Get directions
Petrol stations near SA31 3HL
| Station | Unleaded |
|---|---|
|
Tesco
Tesco Stores, Lon Morfa, Caerfyrddin
|
169.9p
-4.0p cheaper
0.5 mi
· Diesel 195.9pLast reported 3 days ago
-3.0p cheaper
|
|
Morrisons
Parc Pensarn, Carmarthen, Carmarthenshire
|
167.9p
-6.0p cheaper
1.0 mi
· Diesel 194.9pLast reported 15 days ago
-4.0p cheaper
|
|
Texaco
Towy Service Station, The Bridge, Caerfyrddin, SA31 2BN, Caerfyrddin
|
167.9pLast reported 5 days ago
-6.0p cheaper
1.0 mi
· Diesel 197.9pLast reported 14 days ago
-1.0p cheaper
|
|
Murco
Tanerdy Garage, Tanerdy, Carmarthen
|
165.9pLast reported 3 days ago
-8.0p cheaper
1.8 mi
· Diesel 193.9pLast reported 5 days ago
-5.0p cheaper
|
|
Valero
Lysonnen Road, Carmarthen, Carmarthen, Carmarthenshire
|
167.9pLast reported 4 days ago
-6.0p cheaper
2.2 mi
· Diesel 196.9pLast reported 12 days ago
-2.0p cheaper
|
Opening Hours
Amenities
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.
At this forecourt
Well-rated food within half a mile
Hygiene ratings: Food Standards Agency. About this data.
How Cks Supermarket fuel prices compare
Unleaded
3.6% more expensive than the 5 stations within 3 miles (+6.0p)
1.3% above the UK average (+2.3p)
1.2% above the Murco national average (+2.1p)
6th cheapest of 6 for Unleaded within 3 miles
Cheaper nearby: Carmarthen Extra — 0.5 mi away, save ~200p after the drive
Savings based on a 55 L fill at 44.6 mpg, round trip.
Lowest 173.9p on 13 Oct · Highest 174.9p on 6 Oct
Diesel
1.5% more expensive than the 5 stations within 3 miles (+3.0p)
0.2% above the UK average (+0.5p)
0.5% above the Murco national average (+1.1p)
6th cheapest of 6 for Diesel within 3 miles
Cheaper nearby: Carmarthen Extra — 0.5 mi away, save ~143p after the drive
Savings based on a 55 L fill at 48.4 mpg, round trip.
Lowest 198.9p on 13 Oct · Highest 198.9p on 13 Oct
Cks Supermarket price history
Recent price changes
Unleaded has not changed over the past week and has changed price 2 times in the last 30 days.
Diesel has not changed over the past week and has changed price 1 time in the last 30 days.
| Date | Unleaded | Diesel |
|---|---|---|
| Earlier in the last 30 days | ||
| 173.9p −1.0 | 198.9p −1.0 | |
| 174.9p +1.0 | 199.9p | |
| More than 30 days ago | ||
| 173.9p +1.0 | 199.9p | |
| 172.9p +4.0 | 199.9p +7.0 | |
| 168.9p +2.0 | 192.9p +5.0 | |
| 166.9p +5.0 | 187.9p +6.0 | |
| 161.9p +1.0 | 181.9p +1.0 | |
| 160.9p +1.0 | 180.9p +1.0 | |
| 159.9p +5.0 | 179.9p +2.0 | |
| 154.9p | 177.9p | |
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 47% 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 | 173.9p | 91.95p | 52.95p | 29.00p |
| Diesel | 198.9p | 112.75p | 52.95p | 33.20p |
Duty rate: GOV.UK, checked 13 October 2026.
Common questions about Cks Supermarket
How much is unleaded at Cks Supermarket?
Unleaded at Cks Supermarket is 173.9p per litre, last reported on 13 October 2026. That is 2.3p above the UK average. A 55 litre fill costs about £95.65.
How much is diesel at Cks Supermarket?
Diesel at Cks Supermarket is 198.9p per litre, last reported on 13 October 2026. That is 0.5p above the UK average. A 55 litre fill costs about £109.40.
Is Cks Supermarket the cheapest place for unleaded near Carmarthen/Caerfyrddin?
No. Going by the price it last reported, 20 days ago, Cks Supermarket is the 6th cheapest of 6 stations for unleaded within 3 miles. Carmarthen Extra, 0.5 miles away, charges 169.9p, which saves about £2.00 on a 55 litre fill after the cost of driving there and back.
What are the opening hours of Cks Supermarket?
Cks Supermarket is open Monday to Sunday 07:00–22:00. Bank holiday hours can differ.
What fuel and facilities does Cks Supermarket have?
Cks Supermarket reports prices for Unleaded and Diesel. Facilities listed for the site: AdBlue (packaged), Air pump / screenwash and Toilets.
How often does Cks Supermarket change its prices?
Unleaded has not changed over the past week and has changed price 2 times in the last 30 days.