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 Cardiff city centre, Canton, Cardiff Bay, Grangetown: The Full Report

A comprehensive breakdown of fuel prices in the Cardiff city centre, Canton, Cardiff Bay, Grangetown 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 06:15
8
Local Stations
25
Brands (CF Area)
14.2p
Max Price Gap
#28
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 150.7p at ASDA
  • Potential savings: Up to £7.81 per tank
  • 103 stations tracked across 25 brands

Motorists in Cardiff city centre, Canton, Cardiff Bay, Grangetown are currently enjoying some of the lowest fuel prices in the UK, ranking in the top 24% nationally. Over the past week, E10 petrol prices in CF have Increased 1.3p (0.8%)

According to our latest data feed from the Competition and Markets Authority (CMA), selecting the right forecourt in Cardiff city centre, Canton, Cardiff Bay, Grangetown could save you up to 14.2p per litre. For an average 55-litre family car, that's a saving of over £7.81 on a single tank.

Market Competition: Moderate competition

Competition Level: High

Cardiff city centre, Canton, Cardiff Bay, Grangetown has 103 active fuel stations across 25 different brands, with a brand diversity index of 0.24 - indicating healthy market competition.

The price spread between cheapest and average stations is 9.8p, revealing significant price differences - shop around to save!

Today's Best Value

Cheapest E10 Petrol in Cardiff, Cardiff city centre, Canton, Cardiff Bay, Grangetown:
150.7p at ASDA, CAPITAL RETAIL PARK-LECKWITH ROAD, CARDIFF, WALES

Cheapest B7 Diesel in Cardiff, Cardiff city centre, Canton, Cardiff Bay, Grangetown:
167.7p at ASDA, CAPITAL RETAIL PARK-LECKWITH ROAD, CARDIFF, WALES

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

Fuel Type Availability

E10
Unleaded (E10)
Widely available
102 / 103 Stations (99%)
E5
Super Unleaded (E5)
Moderate availability
70 / 103 Stations (68%)
B7
Diesel (B7)
Widely available
102 / 103 Stations (99%)
SDV
Premium Diesel
Moderate availability
47 / 103 Stations (45.6%)

Top 8 cheapest petrol stations (E10)

Here is the verified list of the most affordable places to buy standard Unleaded petrol in Cardiff city centre, Canton, Cardiff Bay, Grangetown today.

PETROL LEADERBOARD Live Data
1
ASDA
CAPITAL RETAIL PARK-LECKWITH ROAD, CARDIFF, WALES , CF11 8AZ
150.7p
BEST PRICE
2
ASDA
FERRY ROAD RETAIL PARK, CARDIFF, WALES , CF11 0JR
152.9p
+2.2p
3
ESSO
CATHEDRAL ROAD, CARDIFF, SOUTH GLAMORGAN, WALES , CF11 9HA
159.9p
+9.2p
4
MORRISONS
INTERNATIONAL DRIVE, CARDIFF BAY, CARDIFF, WALES , CF11 0JP
161.9p
+11.2p
5
VALERO
HADFIELD ROAD, CARDIFF, GLAMORGAN, WALES , CF11 8WD
162.9p
+12.2p
6
TEXACO
TUDOR FILLING STATION, 14-24, TUDOR STREET, CAERDYDD, CF11 6AF, CAERDYDD, WALES , CF11 6AF
162.9p
+12.2p
7
TEXACO
SLOPER ROAD, LECKWITH, CARDIFF, WALES , CF11 8AF
163.9p
+13.2p
8
ESSO
235 CORPORATION ROAD, CARDIFF, GLAMORGAN, WALES , CF11 7AS
164.9p
+14.2p

Top 8 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 Cardiff city centre, Canton, Cardiff Bay, Grangetown area.

DIESEL LEADERBOARD Live Data
1
ASDA
CAPITAL RETAIL PARK-LECKWITH ROAD, CARDIFF, WALES , CF11 8AZ
167.7p
BEST PRICE
2
ASDA
FERRY ROAD RETAIL PARK, CARDIFF, WALES , CF11 0JR
168.9p
+1.2p
3
MORRISONS
INTERNATIONAL DRIVE, CARDIFF BAY, CARDIFF, WALES , CF11 0JP
179.9p
+12.2p
4
TEXACO
SLOPER ROAD, LECKWITH, CARDIFF, WALES , CF11 8AF
183.9p
+16.2p
5
TEXACO
TUDOR FILLING STATION, 14-24, TUDOR STREET, CAERDYDD, CF11 6AF, CAERDYDD, WALES , CF11 6AF
183.9p
+16.2p
6
ESSO
235 CORPORATION ROAD, CARDIFF, GLAMORGAN, WALES , CF11 7AS
185.9p
+18.2p
7
VALERO
HADFIELD ROAD, CARDIFF, GLAMORGAN, WALES , CF11 8WD
185.9p
+18.2p
8
ESSO
CATHEDRAL ROAD, CARDIFF, SOUTH GLAMORGAN, WALES , CF11 9HA
189.9p
+22.2p

How to save on fuel in Cardiff city centre, Canton, Cardiff Bay, Grangetown

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 Cardiff city centre, Canton, Cardiff Bay, Grangetown.

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

"Cardiff city centre, Canton, Cardiff Bay, Grangetown benefits from strong market competition with 25 brands operating across 103 stations. Ranking in the top 24% nationally makes this an excellent area for fuel savings, while with a 9.8p price gap between cheapest and average stations, careful selection could save £5.39 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 ASDA at 150.7p per litre.

There is currently a 14.2p difference between the cheapest and most expensive stations in Cardiff city centre, Canton, Cardiff Bay, Grangetown. For a standard family car, this equals a saving of £7.81 per tank.

Not currently. An independent or oil-company brand (ASDA) 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: 06:20, 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 Cardiff city centre, Canton, Cardiff Bay, Grangetown was last synchronized at 06:15 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) 1.3p
Was: 156.4p → Now: 157.7p
Diesel (B7) 6.1p
Was: 173.8p → Now: 179.9p

Visualise the Savings

View 16 local stations on our interactive map.

Open Live Map
Popular Brands in Cardiff city centre, Canton, Cardiff Bay, Grangetown
ASDA ESSO MORRISONS VALERO TEXACO