Today’s Cheapest Petrol and Diesel in Cardiff: The Full Report

A comprehensive breakdown of fuel prices in the Cardiff 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 Tuesday, 10th February 2026 at 10:10
14
Local Stations
23
Brands (CF Area)
5.2p
Max Price Gap
#37
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 129.7p at Asda
  • Potential savings: Up to £2.86 per tank
  • 87 stations tracked across 23 brands

Motorists in Cardiff are currently experiencing competitive fuel prices, with average costs below the national median. Over the past week, E10 petrol prices in CF have Increased 1.3p (1%)

According to our latest data feed from the Competition and Markets Authority (CMA), selecting the right forecourt in Cardiff could save you up to 5.2p per litre. For an average 55-litre family car, that's a saving of over £2.86 on a single tank.

Market Competition: Moderate competition

Competition Level: High

Cardiff has 87 active fuel stations across 23 different brands, with a brand diversity index of 0.26 - indicating healthy market competition.

The price spread between cheapest and average stations is 7.6p, revealing significant price differences - shop around to save!

Today's Best Value

Cheapest E10 Petrol in , Cardiff:
129.7p at Asda, Longwood Drive, Cardiff

Cheapest B7 Diesel in , Cardiff:
135.7p at Asda, Longwood Drive, Cardiff

As expected, the supermarket chains are leading the price war in Cardiff, aggressively undercutting the major oil brands.

Fuel Type Availability

E10
Unleaded (E10)
Widely available
85 / 87 Stations (97.7%)
E5
Super Unleaded (E5)
Moderate availability
57 / 87 Stations (65.5%)
B7
Diesel (B7)
Widely available
83 / 87 Stations (95.4%)
SDV
Premium Diesel
Moderate availability
35 / 87 Stations (40.2%)

Top 10 cheapest petrol stations (E10)

Here is the verified list of the most affordable places to buy standard Unleaded petrol in Cardiff today.

PETROL LEADERBOARD Live Data
1
Asda
Longwood Drive, Cardiff , CF14 7EW
129.7p
BEST PRICE
2
Asda
Capital Retail Park-Leckwith Road, Cardiff , CF11 8AZ
129.7p
+0.0p
3
Asda
Ferry Road Retail Park, Cardiff , CF11 0JR
129.9p
+0.2p
4
Morrisons
MFG Morrisons Cardiff Bay, International Drive, CARDIFF , CF11 0JP
129.9p
+0.2p
5
Morrisons
MFG Morrisons Cardiff Tyglass, Ty Glas Road, CARDIFF , CF14 5EP
129.9p
+0.2p
6
TESCO
Tesco Express Tyn-Y-Parc Road Cardiff , CF14 6BN
129.9p
+0.2p
7
TESCO
Excelsior Estate Excelsior Road Cardiff , CF14 3AT
129.9p
+0.2p
8
BP
NANT GARW HILL, CARDIFF, MID GLAMORGAN, CF15 7UN , CF15 7UN
130.9p
+1.2p
9
Texaco
MFG Ninian, Sloper Road, Cardiff , CF11 8AF
131.9p
+2.2p
10
ESSO
MFG Cardiff Bay, 235 Corporation Road, Cardiff , CF11 7AS
131.9p
+2.2p

Top 10 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 area.

DIESEL LEADERBOARD Live Data
1
Asda
Longwood Drive, Cardiff , CF14 7EW
135.7p
BEST PRICE
2
Asda
Capital Retail Park-Leckwith Road, Cardiff , CF11 8AZ
135.9p
+0.2p
3
Morrisons
MFG Morrisons Cardiff Tyglass, Ty Glas Road, CARDIFF , CF14 5EP
135.9p
+0.2p
4
TESCO
Tesco Express Tyn-Y-Parc Road Cardiff , CF14 6BN
135.9p
+0.2p
5
TESCO
Excelsior Estate Excelsior Road Cardiff , CF14 3AT
135.9p
+0.2p
6
Asda
Ferry Road Retail Park, Cardiff , CF11 0JR
136.9p
+1.2p
7
Morrisons
MFG Morrisons Cardiff Bay, International Drive, CARDIFF , CF11 0JP
136.9p
+1.2p
8
Sainsbury's
District Shopping Centre, Excalibur Drive, Thornhill , CF14 9BB
137.9p
+2.2p
9
Esso
CATHEDRAL ROAD, CARDIFF, SOUTH GLAMORGAN, CF11 9HA , CF11 9HA
138.9p
+3.2p
10
BP
NANT GARW HILL, CARDIFF, MID GLAMORGAN, CF15 7UN , CF15 7UN
138.9p
+3.2p

How to save on fuel in Cardiff

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.

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 benefits from strong market competition with 23 brands operating across 87 stations. With a 7.6p price gap between cheapest and average stations, careful selection could save £4.18 per tank, while supermarkets like Asda continue to undercut traditional forecourts."

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

Frequently Asked Questions

As of February 10, 2026, the cheapest station is Asda at 129.7p per litre.

There is currently a 5.2p difference between the cheapest and most expensive stations in Cardiff. For a standard family car, this equals a saving of £2.86 per tank.

Yes, currently supermarkets (Asda) are offering the lowest prices in the area.

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: 10:23, 10 Feb 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 was last synchronized at 10:10 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: 130.2p → Now: 131.5p
Diesel (B7) Stable
Was: 138p → Now: 138.1p

Visualise the Savings

View 20 local stations on our interactive map.

Open Live Map
Popular Brands in Cardiff
Asda Morrisons TESCO BP Texaco