DT postcodes
Cheapest petrol across Dorchester
Typical petrol across the 3 DT postcode districts we cover is 162.4p a litre and diesel 181.9p, and the cheapest we can see right now is 155.9p near DT7. Pick your district below for the cheapest forecourts within five miles of its centre, or enter your full postcode on the home page for the exact forecourts around you.
Every Dorchester district we cover
Common questions about petrol in Dorchester
How much is petrol in the DT postcode area?
Typical petrol across the 3 DT districts we cover is 162.4p a litre and diesel 181.9p as of 10:00 on 28 August 2026, and the cheapest we can see is 155.9p near DT7.
Where is the cheapest petrol in Dorchester?
Right now the lowest price in the DT area is 155.9p at Seaton Superstore - Petrol Filling Station, EX12 2PB near DT7. Pick your district below for the forecourts within five miles of its centre, or enter your full postcode on the home page.
How often are these prices updated?
Forecourts must report a price change to the official Fuel Finder scheme within 30 minutes, and these pages are rebuilt twice a day. They were last updated at 10:00 on 28 August 2026.