Live prices
Cheapest petrol and diesel near DT3
7 forecourts within 5 miles of the centre of the DT3 postcode district, 3 of them inside DT3 itself.
The cheapest reported unleaded petrol (E10) within 5 miles of the centre of DT3 is £7.63 a gallon (167.9p per litre) at Sainsbury's, Mercury Road, Weymouth (DT3 5BJ). The average across 7 forecourts currently reporting this grade is £7.80 a gallon (171.5p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £1.80 on a 50-litre fill. That local average is 0.9p per litre below the UK average of 172.4p.
The average has risen 0.9p per litre since yesterday. The average has risen 3.6p per litre since last week.
Prices last refreshed at 6:32am on 20 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
Unleaded Prices
Unleaded (E10)
- Highest
- £7.91/gal173.9p/L
- Average
- £7.80/gal171.5p/L
- Lowest
- £7.63/gal167.9p/L
Diesel Prices
Diesel (B7)
- Highest
- £9.00/gal197.9p/L
- Average
- £8.85/gal194.6p/L
- Lowest
- £8.72/gal191.9p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £8.86/gal194.9p/L
- Average
- £8.50/gal186.9p/L
- Lowest
- £8.18/gal179.9p/L
Super Diesel Prices
Super Diesel (SDV)
- Highest
- £9.91/gal217.9p/L
- Average
- £9.72/gal213.9p/L
- Lowest
- £9.54/gal209.9p/L
Every station near DT3, cheapest unleaded first
| Station | Distance | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|---|
 Sainsburys Weymouth (DT3 5BJ)Mercury Road, Weymouth | 0.6 miles | £7.63167.9p | £8.72191.9p | £8.18179.9p | ---- | 8h ago |
 Asda Weymouth Express Petrol (DT4 7BJ)24hKing Street, Weymouth | 2 miles | £7.72169.9p | £8.77192.9p | £8.59188.9p | £9.63211.9p | 8h ago |
 Dorchester Superstore - Petrol Filling Station (DT1 2RY)24hWeymouth Ave, Dorchester | 4.3 miles | £7.77170.9p | £8.77192.9p | £8.27181.9p | ---- | 8h ago |
 Mfg Morrisons Weymouth (DT3 5HJ)Mercury Road, Weymouth, Dorset | 0.7 miles | £7.81171.9p | £8.81193.9p | £8.45185.9p | ---- | 8h ago |
| Lanehouse Rocks Rd Esso Express (DT4 9DJ)Lanehouse Rocks RD, Weymouth | 2.7 miles | £7.81171.9p | £8.91195.9p | £8.50186.9p | £9.54209.9p | 8h ago |
 Weymouth Sf Connect (DT3 5AS)24h316-318 Dorchester Road, Weymouth, Dorset | 0.3 miles | £7.91173.9p | £8.95196.9p | £8.86194.9p | £9.91217.9p | 8h ago |
| Mfg Weymouth (DT4 9TB)Cumberland Drive, Granby Ind Estate, Weymouth, Dorset | 2.2 miles | £7.91173.9p | £9.00197.9p | £8.63189.9p | £9.82215.9p | 8h ago |
The market shown is a fixed 5-mile radius from the centre of the DT3 postcode district. Not every station reports every fuel grade, so grade averages state how many stations they cover. Prices are supplied through the official UK Government fuel price open data scheme (Open Government Licence v3.0) and checked every 30 minutes.
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Answers come straight from recorded official price data, refreshed every 30 minutes.
By fuel grade near DT3
Worth the drive?
Filling 50 litres at the cheapest reported station rather than an average-priced one saves about £1.80 today.
Questions about fuel prices near DT3
- Where is the cheapest petrol near DT3?
- The cheapest reported unleaded petrol (E10) within 5 miles of the centre of DT3 is 167.9p per litre at Sainsbury's, Mercury Road, Weymouth (DT3 5BJ). The local average is 171.5p across 7 forecourts reporting this grade. Prices were last refreshed at 6:32am on 20 September 2026 from official UK Government fuel price data.
- Where is the cheapest diesel near DT3?
- The cheapest reported diesel (B7) within 5 miles of the centre of DT3 is 191.9p per litre at Sainsbury's, Mercury Road, Weymouth (DT3 5BJ). The local average is 194.6p per litre.
- How often are fuel prices in DT3 updated?
- Prices are supplied by fuel retailers through the official UK Government fuel price open data scheme and checked every 30 minutes. Each station row shows when its price was last recorded.