Fuel Price Check Analysis – Week of March 31, 2026 Petrol (E10) 153.4p 2.5% (+3.8p) 7d avg: 151.3p Hold off if you can | Super Unleaded (E5) 170.1p 2.3% (+3.8p) 7d avg: 168.3p Hold off if you can | Diesel (B7) 183.9p 4% (+7p) 7d avg: 180.2p Hold off if you can | Super Diesel (SDV) 200.7p 2.2% (+4.3p) 7d avg: 198.7p Hold off if you can |
Fuel Price Check Analysis – Week of March 31, 2026 Petrol (E10) 153.4p 2.5% (+3.8p) 7d avg: 151.3p Hold off if you can | Super Unleaded (E5) 170.1p 2.3% (+3.8p) 7d avg: 168.3p Hold off if you can | Diesel (B7) 183.9p 4% (+7p) 7d avg: 180.2p Hold off if you can | Super Diesel (SDV) 200.7p 2.2% (+4.3p) 7d avg: 198.7p Hold off if you can |

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 Wednesday, 1st April 2026 at 15:55
15
Local Stations
26
Brands (CF Area)
6.0p
Max Price Gap
#26
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 149.9p at MORRISONS
  • Potential savings: Up to £3.30 per tank
  • 100 stations tracked across 26 brands

Motorists in Cardiff are currently enjoying some of the lowest fuel prices in the UK, ranking in the top 22% nationally. Over the past week, E10 petrol prices in CF have Increased 4.3p (2.9%)

According to our latest data feed from the Competition and Markets Authority (CMA), selecting the right forecourt in Cardiff could save you up to 6.0p per litre. For an average 55-litre family car, that's a saving of over £3.30 on a single tank.

Market Competition: Moderate competition

Competition Level: High

Cardiff has 100 active fuel stations across 26 different brands, with a brand diversity index of 0.26 - indicating healthy market competition.

The price spread between cheapest and average stations is 10.5p, revealing significant price differences - shop around to save!

Today's Best Value

Cheapest E10 Petrol in , Cardiff:
149.9p at MORRISONS, INTERNATIONAL DRIVE, CARDIFF BAY, CARDIFF, WALES

Cheapest B7 Diesel in , Cardiff:
170.9p at Tivoli Service Station, TIVOLI SERVICE STATION, 14, STATION ROAD, LLANDAFF NORTH, CARDIFF, CF14 2FF, CARDIFF, Wales

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

Fuel Type Availability

E10
Unleaded (E10)
Widely available
99 / 100 Stations (99%)
E5
Super Unleaded (E5)
Moderate availability
70 / 100 Stations (70%)
B7
Diesel (B7)
Widely available
99 / 100 Stations (99%)
SDV
Premium Diesel
Moderate availability
44 / 100 Stations (44%)

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
MORRISONS
INTERNATIONAL DRIVE, CARDIFF BAY, CARDIFF, WALES , CF11 0JP
149.9p
BEST PRICE
2
MORRISONS
TY- GLAS ROAD, LLANISHEN, CARDIFF, WALES , CF14 5EP
149.9p
+0.0p
3
Tivoli Service Station
TIVOLI SERVICE STATION, 14, STATION ROAD, LLANDAFF NORTH, CARDIFF, CF14 2FF, CARDIFF, Wales , CF14 2FF
149.9p
+0.0p
4
ASDA
FERRY ROAD RETAIL PARK, CARDIFF, WALES , CF11 0JR
150.9p
+1.0p
5
BP
NANT GARW HILL, CARDIFF, MID GLAMORGAN, WALES , CF15 7UN
150.9p
+1.0p
6
SAINSBURY'S
DISTRICT SHOPPING CENTRE, EXCALIBUR DRIVE, THORNHILL, CARDIFF, WALES , CF14 9BB
150.9p
+1.0p
7
ASDA
LONGWOOD DRIVE, CORYTON ROUNDABOUT, CARDIFF, WALES , CF14 7EW
151.7p
+1.8p
8
ASDA
CAPITAL RETAIL PARK-LECKWITH ROAD, CARDIFF, WALES , CF11 8AZ
151.7p
+1.8p
9
TESCO
TESCO EXPRESS, TYN-Y-PARC ROAD, CARDIFF, WALES , CF14 6BN
152.9p
+3.0p
10
TESCO
EXCELSIOR ESTATE, EXCELSIOR ROAD, CARDIFF, WALES , CF14 3AT
152.9p
+3.0p

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
Tivoli Service Station
TIVOLI SERVICE STATION, 14, STATION ROAD, LLANDAFF NORTH, CARDIFF, CF14 2FF, CARDIFF, Wales , CF14 2FF
170.9p
BEST PRICE
2
ASDA
LONGWOOD DRIVE, CORYTON ROUNDABOUT, CARDIFF, WALES , CF14 7EW
178.7p
+7.8p
3
ASDA
FERRY ROAD RETAIL PARK, CARDIFF, WALES , CF11 0JR
178.9p
+8.0p
4
SAINSBURY'S
DISTRICT SHOPPING CENTRE, EXCALIBUR DRIVE, THORNHILL, CARDIFF, WALES , CF14 9BB
178.9p
+8.0p
5
ASDA
CAPITAL RETAIL PARK-LECKWITH ROAD, CARDIFF, WALES , CF11 8AZ
179.7p
+8.8p
6
MORRISONS
INTERNATIONAL DRIVE, CARDIFF BAY, CARDIFF, WALES , CF11 0JP
179.9p
+9.0p
7
MORRISONS
TY- GLAS ROAD, LLANISHEN, CARDIFF, WALES , CF14 5EP
179.9p
+9.0p
8
TESCO
TESCO EXPRESS, TYN-Y-PARC ROAD, CARDIFF, WALES , CF14 6BN
179.9p
+9.0p
9
TESCO
EXCELSIOR ESTATE, EXCELSIOR ROAD, CARDIFF, WALES , CF14 3AT
180.9p
+10.0p
10
Texaco Three Arches Services
THREE ARCHES SERVICES LTD, HEATHWOOD ROAD, CARDIFF, CF14 4HT, CARDIFF, Wales , CF14 4HT
181.9p
+11.0p

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 26 brands operating across 100 stations. Prices have climbed 4.3p this week, so filling up sooner rather than later is advisable, while ranking in the top 22% nationally makes this an excellent area for fuel savings."

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

Frequently Asked Questions

As of April 1, 2026, the cheapest station is MORRISONS at 149.9p per litre.

There is currently a 6.0p difference between the cheapest and most expensive stations in Cardiff. For a standard family car, this equals a saving of £3.30 per tank.

Not currently. An independent or oil-company brand (MORRISONS) 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: 15:56, 01 Apr 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 15:55 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) 4.3p
Was: 148.1p → Now: 152.4p
Diesel (B7) 8.9p
Was: 174.1p → Now: 183p

Visualise the Savings

View 20 local stations on our interactive map.

Open Live Map
Popular Brands in Cardiff
MORRISONS Tivoli Service Station ASDA BP SAINSBURY'S