Fuel Price Check Analysis – Week of April 28, 2026 Petrol (E10) 167.7p 0.3% (-0.5p) 7d avg: 167.9p Prices stable | Super Unleaded (E5) 186.9p 0.2% (-0.4p) 7d avg: 187.1p Prices stable | Diesel (B7) 195.1p 0.1% (-0.1p) 7d avg: 195.2p Prices stable | Super Diesel (SDV) 216.4p 0.1% (-0.2p) 7d avg: 216.5p Prices stable |
Fuel Price Check Analysis – Week of April 28, 2026 Petrol (E10) 167.7p 0.3% (-0.5p) 7d avg: 167.9p Prices stable | Super Unleaded (E5) 186.9p 0.2% (-0.4p) 7d avg: 187.1p Prices stable | Diesel (B7) 195.1p 0.1% (-0.1p) 7d avg: 195.2p Prices stable | Super Diesel (SDV) 216.4p 0.1% (-0.2p) 7d avg: 216.5p Prices stable |

Fuel Prices in Porth, Llwyncelyn, Cymmer, Glynfach, Trebanog...

Live comparison for CF39 area. Tracking 2 stations across 35 brands. For a detailed breakdown including 7-day price trends, market competition analysis, and savings tips, and also find Today’s Cheapest Petrol and Diesel in Porth, Llwyncelyn, Cymmer, Glynfach, Trebanog, Ynyshir, Wattstown, Dinas, Tonyrefail, Coed Ely, Thomastown, Gilfach Goch, Evanstown .

Wales 2 Stations 2 Brands
Updated 2 Nov 2026
View Porth, Llwyncelyn, Cymmer, Glynfach, Trebanog, Ynyshir, Wattstown, Dinas, Tonyrefail, Coed Ely, Thomastown, Gilfach Goch, Evanstown on the Fuel Map

Compare all 2 stations visually on our interactive map to find the cheapest fuel near your route.

7-Day Price Movement
Petrol (E10)
172.6p 166.8p
5.8p (3.3%)
Diesel (B7)
198.6p 194.6p
4p (2%)
Cheapest Today
Petrol
GULF
MILL STREET, TONYREF...
168.9p
View Details
Super Unleaded
GULF
MILL STREET, TONYREF...
186.9p
View Details
Diesel
VALERO
NORTH ROAD, PORTH, R...
198.9p
View Details
Super Diesel
VALERO
NORTH ROAD, PORTH, R...
159.9p
View Details
Area Averages vs National
Petrol
169.4p
▲ 1.7p vs UK Avg
Super Unleaded
188.4p
▲ 1.5p vs UK Avg
Diesel
199.4p
▲ 4.3p vs UK Avg
Super Diesel
188.9p
▼ 27.5p vs UK Avg
All Fuel Stations in Porth, Llwyncelyn, Cymmer, Glynfach, Trebanog, Ynyshir, Wattstown, Dinas, Tonyrefail, Coed Ely, Thomastown, Gilfach Goch, Evanstown (CF39)
VALERO
NORTH ROAD, PORTH, RHONDDA, WALES
E10
169.9
E5
189.9
B7
198.9
SDV
159.9
3 minutes ago
GULF
MILL STREET, TONYREFAIL, PORTH, RHONDDA CYNON TAF, WALES
E10
168.9
E5
186.9
B7
199.9
SDV
217.9
3 minutes ago
Frequently Asked Questions About Fuel in Porth, Llwyncelyn, Cymmer, Glynfach, Trebanog, Ynyshir, Wattstown, Dinas, Tonyrefail, Coed Ely, Thomastown, Gilfach Goch, Evanstown

As of 2 November 2026, the cheapest E10 petrol in Porth, Llwyncelyn, Cymmer, Glynfach, Trebanog, Ynyshir, Wattstown, Dinas, Tonyrefail, Coed Ely, Thomastown, Gilfach Goch, Evanstown is 168.9p at GULF, MILL STREET, TONYREFAIL, PORTH, RHONDDA CYNON TAF, WALES.

There is currently a 1.0p difference between the cheapest and most expensive stations in Porth, Llwyncelyn, Cymmer, Glynfach, Trebanog, Ynyshir, Wattstown, Dinas, Tonyrefail, Coed Ely, Thomastown, Gilfach Goch, Evanstown. For a standard 55-litre family car, that equals a saving of £0.55 per tank.

We update prices daily using data provided directly by fuel stations via the Competition and Markets Authority (CMA) Open Data scheme. This is a UK Government initiative requiring all major retailers to report live prices, ensuring you see the most accurate data for the Rhondda Cynon Taf area.

Not today. GULF is actually cheaper than local supermarkets in CF39. It's always worth comparing before filling up.

We are currently tracking 2 active fuel stations in the CF39 area, operated by 2 different brands including VALERO, GULF and more.

The cheapest B7 diesel in Porth, Llwyncelyn, Cymmer, Glynfach, Trebanog, Ynyshir, Wattstown, Dinas, Tonyrefail, Coed Ely, Thomastown, Gilfach Goch, Evanstown is currently 198.9p at VALERO. You can also use our interactive fuel map to compare diesel prices visually.

Prices sourced from the UK Government CMA Open Data Scheme, updated every 30 minutes. CheckFuelPrices is editorially independent — read our policy.