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
9
Local Stations
23
Brands (CF Area)
59.0p
Max Price Gap
#37
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 129.9p at Asda
  • Potential savings: Up to £32.45 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 59.0p per litre. For an average 55-litre family car, that's a saving of over £32.45 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:
129.9p at Asda, 8 Dering Road, Pontprennau, Cardiff

Cheapest B7 Diesel in , Cardiff:
135.9p at Asda, 8 Dering Road, Pontprennau, 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 9 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
8 Dering Road, Pontprennau, Cardiff , CF23 8NL
129.9p
BEST PRICE
2
Morrisons
MFG Morrisons Cardiff Newport Road, Ipswich Road, CARDIFF , CF23 9YG
130.9p
+1.0p
3
TESCO
Tesco Extra Ffordd Pengam Cardiff , CF24 2HP
130.9p
+1.0p
4
Sainsbury's
Colchester Avenue, Penylan , CF23 9XN
131.9p
+2.0p
5
Texaco
MFG Cardinal, Newport Road, Cardiff , CF23 9AD
132.9p
+3.0p
6
Esso
MFG Premier, Newport Road, Cardiff , CF23 9AE
132.9p
+3.0p
7
ESSO
MFG Cardiff, 145 Newport Road, Roath , CF24 1AG
132.9p
+3.0p
8
Pentwyn Service Station
PENTWYN SERVICE STATION, PENTWYN ROAD, PENTWYN, CARDIFF, CF23 7XH, CARDIFF, Wales , CF23 7XH
135.9p
+6.0p
9
Dimes - London
4, WILSON STREET, CAERDYDD, CF24 2NY, CAERDYDD, Wales , CF24 2NY
188.9p
+59.0p

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 area.

DIESEL LEADERBOARD Live Data
1
Asda
8 Dering Road, Pontprennau, Cardiff , CF23 8NL
135.9p
BEST PRICE
2
Morrisons
MFG Morrisons Cardiff Newport Road, Ipswich Road, CARDIFF , CF23 9YG
136.9p
+1.0p
3
TESCO
Tesco Extra Ffordd Pengam Cardiff , CF24 2HP
136.9p
+1.0p
4
Sainsbury's
Colchester Avenue, Penylan , CF23 9XN
137.9p
+2.0p
5
Texaco
MFG Cardinal, Newport Road, Cardiff , CF23 9AD
139.9p
+4.0p
6
Esso
MFG Premier, Newport Road, Cardiff , CF23 9AE
139.9p
+4.0p
7
ESSO
MFG Cardiff, 145 Newport Road, Roath , CF24 1AG
139.9p
+4.0p
8
Pentwyn Service Station
PENTWYN SERVICE STATION, PENTWYN ROAD, PENTWYN, CARDIFF, CF23 7XH, CARDIFF, Wales , CF23 7XH
141.9p
+6.0p

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 129.9p per litre.

There is currently a 59.0p difference between the cheapest and most expensive stations in Cardiff. For a standard family car, this equals a saving of £32.45 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: 10:27, 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 17 local stations on our interactive map.

Open Live Map
Popular Brands in Cardiff
Asda Morrisons TESCO Sainsbury's Texaco