Fuel Price Check Analysis – Week of April 28, 2026 Petrol (E10) 158.8p 0.8% (+1.2p) 7d avg: 158.4p Prices stable | Super Unleaded (E5) 176.8p 0.5% (+0.9p) 7d avg: 176.4p Prices stable | Diesel (B7) 181p 1.1% (+1.9p) 7d avg: 180.4p Slight rise | Super Diesel (SDV) 199.7p 0.7% (+1.4p) 7d avg: 199.3p Prices stable |
Fuel Price Check Analysis – Week of April 28, 2026 Petrol (E10) 158.8p 0.8% (+1.2p) 7d avg: 158.4p Prices stable | Super Unleaded (E5) 176.8p 0.5% (+0.9p) 7d avg: 176.4p Prices stable | Diesel (B7) 181p 1.1% (+1.9p) 7d avg: 180.4p Slight rise | Super Diesel (SDV) 199.7p 0.7% (+1.4p) 7d avg: 199.3p Prices stable |

Today’s Cheapest Petrol and Diesel in Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy: The Full Report

A comprehensive breakdown of fuel prices in the Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy area. We analyze the market data to help you save on your next fill-up.

Jonathan Mathews
Jonathan Mathews
Automotive Data Analyst
10+ years automotive industry
Last Updated Monday, 3rd August 2026 at 08:15
3
Local Stations
49
Brands (SA Area)
21.0p
Max Price Gap
#25
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 136.9p at Texaco
  • Potential savings: Up to £11.55 per tank
  • 161 stations tracked across 49 brands

Motorists in Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy are currently enjoying some of the lowest fuel prices in the UK, ranking in the top 21% nationally. Over the past week, E10 petrol prices in SA have Increased 1.2p (0.8%)

According to our latest data feed from the Competition and Markets Authority (CMA), selecting the right forecourt in Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy could save you up to 21.0p per litre. For an average 55-litre family car, that's a saving of over £11.55 on a single tank.

Market Competition: Moderate competition

Competition Level: High

Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy has 161 active fuel stations across 49 different brands, with a brand diversity index of 0.30 - indicating healthy market competition.

The price spread between cheapest and average stations is 21.7p, revealing significant price differences - shop around to save!

Today's Best Value

Cheapest E10 Petrol in Swansea, Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy:
136.9p at Texaco, 142-146 Swansea Rd, Pontardawe Swansea, SA8 4BN

Cheapest B7 Diesel in Swansea, Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy:
157.9p at Texaco, 142-146 Swansea Rd, Pontardawe Swansea, SA8 4BN

Surprisingly, an independent or branded station (Texaco) has beaten the supermarkets to the top spot today.

Fuel Type Availability

E10
Unleaded (E10)
Widely available
158 / 161 Stations (98.1%)
E5
Super Unleaded (E5)
Moderate availability
97 / 161 Stations (60.2%)
B7
Diesel (B7)
Widely available
157 / 161 Stations (97.5%)
SDV
Premium Diesel
Moderate availability
51 / 161 Stations (31.7%)

Top 3 cheapest petrol stations (E10)

Here is the verified list of the most affordable places to buy standard Unleaded petrol in Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy today.

PETROL LEADERBOARD Live Data
1
Texaco
142-146 Swansea Rd, Pontardawe Swansea, SA8 4BN , SA8 4BN
136.9p
BEST PRICE
2
TESCO
TESCO STORES LTD, GWYNS DRIFT, ALLTWEN, PONTARDAWE, SWANSEA, WALES , SA8 3AZ
154.9p
+18.0p
3
TEXACO
39 New Road,, Gellinudd , Pontardawe , SA8 3DY
157.9p
+21.0p

Top 3 cheapest diesel stations (B7)

For diesel drivers, the price variance can often be even higher. The following stations are currently offering the best value for B7 Diesel in the Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy area.

DIESEL LEADERBOARD Live Data
1
Texaco
142-146 Swansea Rd, Pontardawe Swansea, SA8 4BN , SA8 4BN
157.9p
BEST PRICE
2
TEXACO
39 New Road,, Gellinudd , Pontardawe , SA8 3DY
179.9p
+22.0p
3
TESCO
TESCO STORES LTD, GWYNS DRIFT, ALLTWEN, PONTARDAWE, SWANSEA, WALES , SA8 3AZ
186.9p
+29.0p

How to save on fuel in Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy

While choosing the cheapest station is the easiest way to save, changing your driving habits can also make a significant difference to your monthly spend.

Drive Smoothly

Aggressive acceleration and heavy braking can increase fuel consumption by up to 40% in stop-and-go traffic around Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy.

Reduce Weight

Carrying an extra 50kg in your boot increases fuel consumption by 1-2%. Clear out unnecessary items.

Market Analyst Commentary
CFP Research Team

"Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy benefits from strong market competition with 49 brands operating across 161 stations. Ranking in the top 21% nationally makes this an excellent area for fuel savings, while with a 21.7p price gap between cheapest and average stations, careful selection could save £11.94 per tank."

For more detailed savings, explore our Interactive Fuel Map to scan the entire region visually.

Frequently Asked Questions

As of August 3, 2026, the cheapest station is Texaco at 136.9p per litre.

There is currently a 21.0p difference between the cheapest and most expensive stations in Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy. For a standard family car, this equals a saving of £11.55 per tank.

Not currently. An independent or oil-company brand (Texaco) is actually cheaper than the local supermarkets today.

Our Analysis Methodology

Data Collection
  • Direct feed from UK Government CMA API
  • Updated every 30 minutes via automated polling
  • Zero user-submitted prices (prevents manipulation)
  • Last sync: 08:19, 03 Aug 2026
Quality Assurance
  • Automated anomaly detection for pricing errors
  • Cross-referenced against regional averages
  • Outliers flagged for manual review
  • Historical data tracked for trend validation
Verified Data Source: All prices displayed on this page are sourced directly from the Competition and Markets Authority's official fuel price transparency scheme. We do not accept payments from retailers to alter rankings or display preferential pricing.
Data Accuracy & Methodology

Source: We retrieve real-time pricing data directly from the UK Government CMA Open Data Scheme.

Frequency: Data for Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy was last synchronized at 08:15 today. We update our database every 4 hours to ensure accuracy.

Disclaimer: While we strive for 100% accuracy, forecourt prices can change instantly. The prices listed above were correct at the time of our last server sync.

Editorial Policy

CheckFuelPrices is independent. We do not accept payment from fuel brands to alter rankings. Read our full policy.

📈 7-Day Price Movement
Petrol (E10) 1.2p
Was: 156.4p → Now: 157.6p
Diesel (B7) 5.1p
Was: 174.1p → Now: 179.2p

Visualise the Savings

View 6 local stations on our interactive map.

Open Live Map
Popular Brands in Alltwen, Cwmtawe, Pontardawe, Rhos, Rhyd-y-fro, Trebanos, Ynysmeudwy
Texaco TESCO TEXACO