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

A comprehensive breakdown of fuel prices in the Dorchester 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
7
Local Stations
13
Brands (DT Area)
8.0p
Max Price Gap
#102
UK Ranking REGION
Key Takeaways
  • Cheapest petrol: 133.9p at TESCO
  • Potential savings: Up to £4.40 per tank
  • 23 stations tracked across 13 brands

Motorists in Dorchester are currently paying above-average prices compared to other UK regions. Over the past week, E10 petrol prices in DT have Remained stable

According to our latest data feed from the Competition and Markets Authority (CMA), selecting the right forecourt in Dorchester could save you up to 8.0p per litre. For an average 55-litre family car, that's a saving of over £4.40 on a single tank.

Market Competition: Highly competitive

Competition Level: Moderate

Dorchester has 23 active fuel stations across 13 different brands, with a brand diversity index of 0.57 - indicating healthy market competition.

The price spread between cheapest and average stations is 2.9p, indicating intense price competition keeping costs low.

Today's Best Value

Cheapest E10 Petrol in Dorchester, Dorchester:
133.9p at TESCO, Weymouth Ave Dorchester

Cheapest B7 Diesel in Dorchester, Dorchester:
142.9p at SHELL, 29B LONDON ROAD

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

Fuel Type Availability

E10
Unleaded (E10)
Widely available
21 / 23 Stations (91.3%)
E5
Super Unleaded (E5)
Widely available
20 / 23 Stations (87%)
B7
Diesel (B7)
Widely available
21 / 23 Stations (91.3%)
SDV
Premium Diesel
Moderate availability
9 / 23 Stations (39.1%)

Top 7 cheapest petrol stations (E10)

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

PETROL LEADERBOARD Live Data
1
TESCO
Weymouth Ave Dorchester , DT1 2RY
133.9p
BEST PRICE
2
BP
THE GROVE, DORCHESTER, DORSET, UK , DT1 1XU
133.9p
+0.0p
3
SHELL
29B LONDON ROAD , DT1 1NF
134.9p
+1.0p
4
TESCO
Tesco Stores Ltd Stour Park Blandford St. Mary Blandford Forum , DT11 9PU
134.9p
+1.0p
5
Ring Street Filling Station
RING STREET FILLING STATION, THORNHILL ROAD, STALBRIDGE, STURMINSTER NEWTON, DT10 2NQ, STURMINSTER NEWTON, England , DT10 2NQ
134.9p
+1.0p
6
BP
Main Road A31, Blandford Forum , DT11 9EX
139.9p
+6.0p
7
ESSO
DAMORY GARAGE, SALISBURY ROAD, BLANDFORD FORUM, DT11 7LP, BLANDFORD FORUM, England , DT11 7LP
141.9p
+8.0p

Top 7 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 Dorchester area.

DIESEL LEADERBOARD Live Data
1
SHELL
29B LONDON ROAD , DT1 1NF
142.9p
BEST PRICE
2
TESCO
Weymouth Ave Dorchester , DT1 2RY
142.9p
+0.0p
3
TESCO
Tesco Stores Ltd Stour Park Blandford St. Mary Blandford Forum , DT11 9PU
142.9p
+0.0p
4
BP
THE GROVE, DORCHESTER, DORSET, UK , DT1 1XU
142.9p
+0.0p
5
Ring Street Filling Station
RING STREET FILLING STATION, THORNHILL ROAD, STALBRIDGE, STURMINSTER NEWTON, DT10 2NQ, STURMINSTER NEWTON, England , DT10 2NQ
144.9p
+2.0p
6
BP
Main Road A31, Blandford Forum , DT11 9EX
146.9p
+4.0p
7
ESSO
DAMORY GARAGE, SALISBURY ROAD, BLANDFORD FORUM, DT11 7LP, BLANDFORD FORUM, England , DT11 7LP
149.9p
+7.0p

How to save on fuel in Dorchester

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 Dorchester.

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

"Dorchester's fuel market shows moderate competition among 13 brands. Price stability over the past week suggests predictable costs for motorists, while however, prices rank in the bottom 14% 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 TESCO at 133.9p per litre.

There is currently a 8.0p difference between the cheapest and most expensive stations in Dorchester. For a standard family car, this equals a saving of £4.40 per tank.

Not currently. An independent or oil-company brand (TESCO) 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: 03:08, 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 Dorchester 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: 134.6p → Now: 134.8p
Diesel (B7) Stable
Was: 143.6p → Now: 143.5p

Visualise the Savings

View 14 local stations on our interactive map.

Open Live Map
Popular Brands in Dorchester
TESCO BP SHELL Ring Street Filling Station ESSO