Today’s Cheapest Petrol and Diesel in St Austell, Carlyon Bay, Charlestown, Trewoon: The Full Report

A comprehensive breakdown of fuel prices in the St Austell, Carlyon Bay, Charlestown, Trewoon 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 Friday, 6th February 2026 at 02:50
3
Local Stations
28
Brands (PL Area)
0.2p
Max Price Gap
#104
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 131.7p at Asda
  • Potential savings: Up to £0.11 per tank
  • 61 stations tracked across 28 brands

Motorists in St Austell, Carlyon Bay, Charlestown, Trewoon are currently paying above-average prices compared to other UK regions. Over the past week, E10 petrol prices in PL have Remained stable

According to our latest data feed from the Competition and Markets Authority (CMA), selecting the right forecourt in St Austell, Carlyon Bay, Charlestown, Trewoon could save you up to 0.2p per litre. For an average 55-litre family car, that's a saving of over £0.11 on a single tank.

Market Competition: Competitive

Competition Level: High

St Austell, Carlyon Bay, Charlestown, Trewoon has 61 active fuel stations across 28 different brands, with a brand diversity index of 0.46 - indicating healthy market competition.

The price spread between cheapest and average stations is 4.0p, showing moderate price variation across the market.

Today's Best Value

Cheapest E10 Petrol in St. Austell, St Austell, Carlyon Bay, Charlestown, Trewoon:
131.7p at Asda, Cromwell Road, Saint Austell

Cheapest B7 Diesel in St. Austell, St Austell, Carlyon Bay, Charlestown, Trewoon:
138.7p at Asda, Cromwell Road, Saint Austell

As expected, the supermarket chains are leading the price war in St Austell, Carlyon Bay, Charlestown, Trewoon, aggressively undercutting the major oil brands.

Fuel Type Availability

E10
Unleaded (E10)
Widely available
52 / 61 Stations (85.2%)
E5
Super Unleaded (E5)
Moderate availability
38 / 61 Stations (62.3%)
B7
Diesel (B7)
Widely available
51 / 61 Stations (83.6%)
SDV
Premium Diesel
Moderate availability
25 / 61 Stations (41%)

Top 2 cheapest petrol stations (E10)

Here is the verified list of the most affordable places to buy standard Unleaded petrol in St Austell, Carlyon Bay, Charlestown, Trewoon today.

PETROL LEADERBOARD Live Data
1
Asda
Cromwell Road, Saint Austell , PL25 4PR
131.7p
BEST PRICE
2
TESCO
Daniels Lane St Austell , PL25 3HT
131.9p
+0.2p

Top 2 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 St Austell, Carlyon Bay, Charlestown, Trewoon area.

DIESEL LEADERBOARD Live Data
1
Asda
Cromwell Road, Saint Austell , PL25 4PR
138.7p
BEST PRICE
2
TESCO
Daniels Lane St Austell , PL25 3HT
138.9p
+0.2p

How to save on fuel in St Austell, Carlyon Bay, Charlestown, Trewoon

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 St Austell, Carlyon Bay, Charlestown, Trewoon.

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

"St Austell, Carlyon Bay, Charlestown, Trewoon benefits from strong market competition with 28 brands operating across 61 stations. Price stability over the past week suggests predictable costs for motorists, while however, prices rank in the bottom 12% nationally, suggesting room for improvement."

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

Frequently Asked Questions

As of February 6, 2026, the cheapest station is Asda at 131.7p per litre.

There is currently a 0.2p difference between the cheapest and most expensive stations in St Austell, Carlyon Bay, Charlestown, Trewoon. For a standard family car, this equals a saving of £0.11 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: 03:09, 06 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 St Austell, Carlyon Bay, Charlestown, Trewoon was last synchronized at 02:50 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) Stable
Was: 134.9p → Now: 134.9p
Diesel (B7) Stable
Was: 142.3p → Now: 142.3p

Visualise the Savings

View 4 local stations on our interactive map.

Open Live Map
Popular Brands in St Austell, Carlyon Bay, Charlestown, Trewoon
Asda TESCO