Live prices
Cheapest diesel (B7) in Caernarfon
6 stations reporting diesel (B7), ranked cheapest first.
The cheapest reported diesel (B7) in Caernarfon is £8.59 a gallon (188.9p per litre) at Essar, London Garage Ltd, Cwm-y-glo, Caernarfon, LL55 4DE, Caernarfon (LL55 4DE). The average across 6 forecourts currently reporting this grade is £8.86 a gallon (194.9p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £3.00 on a 50-litre fill. That local average is 1.3p per litre below the UK average of 196.2p.
The average is unchanged since yesterday. The average has risen 6.4p per litre since last week.
Prices last refreshed at 3:02pm on 20 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
| Station | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|
 London Garage Service Station (LL55 4DE)London Garage Ltd, Cwm-y-glo, Caernarfon, LL55 4DE, Caernarfon | £7.63167.9p | £8.59188.9p | ---- | ---- | 1h ago |
 Mfg Morrisons Caernarfon (LL55 1BE)Ffordd Y Gogledd (north Road), Caernarfon, Gwynedd | £7.72169.9p | £8.86194.9p | £8.45185.9p | ---- | 1h ago |
 Caer Service Station (LL55 2HP)Caer Service Station, South Road, Caernarfon, LL55 2HP, Caernarfon | £7.72169.9p | £8.86194.9p | ---- | ---- | 1h ago |
 Gwalia Garage Caernarfon Limited (LL55 2SS)Gwalia Garage Ltd, Caeathro, Caernarfon, LL55 2SS, Caernarfon | £7.72169.9p | £8.86194.9p | £8.31182.9p | ---- | 1h ago |
| Dolydd (LL54 7EF)Modurdy Dolydd Garage, Dolydd, Caernarfon, LL54 7EF, Caernarfon | £7.81171.9p | £8.91195.9p | £8.63189.9p | ---- | 1h ago |
| Beran Filling Station (LL55 3NF)24hBeran Garage, Deiniolen, Caernarfon, LL55 3NF, Caernarfon | £7.91173.9p | £9.09199.9p | ---- | ---- | 1h ago |
Prices are supplied through the official UK Government fuel price open data scheme (Open Government Licence v3.0) and checked every 30 minutes. Only stations reporting diesel (B7) appear here.
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Questions about diesel (B7) in Caernarfon
- Where is the cheapest diesel (B7) in Caernarfon?
- The cheapest reported diesel (B7) in Caernarfon is 188.9p per litre at Essar, London Garage Ltd, Cwm-y-glo, Caernarfon, LL55 4DE, Caernarfon (LL55 4DE). The average across 6 forecourts reporting this grade is 194.9p per litre. Prices were last refreshed at 3:02pm on 20 September 2026 from official UK Government fuel price data.
- How many stations in Caernarfon sell diesel (B7)?
- 6 forecourts in Caernarfon currently report a price for diesel (B7) through the official UK fuel price open data scheme. Stations that do not sell or report this grade are not counted.