Fuel Price Check Analysis – Week of March 17, 2026 Petrol (E10) 144.2p 2.6% (+3.6p) 7d avg: 142.4p Hold off if you can | Super Unleaded (E5) 162.2p 2.5% (+4p) 7d avg: 160.3p Hold off if you can | Diesel (B7) 165.9p 3.9% (+6.3p) 7d avg: 162.7p Hold off if you can | Super Diesel (SDV) 186.6p 4.1% (+7.3p) 7d avg: 183.1p Hold off if you can |
Fuel Price Check Analysis – Week of March 17, 2026 Petrol (E10) 144.2p 2.6% (+3.6p) 7d avg: 142.4p Hold off if you can | Super Unleaded (E5) 162.2p 2.5% (+4p) 7d avg: 160.3p Hold off if you can | Diesel (B7) 165.9p 3.9% (+6.3p) 7d avg: 162.7p Hold off if you can | Super Diesel (SDV) 186.6p 4.1% (+7.3p) 7d avg: 183.1p Hold off if you can |

Fuel Prices in Caernarfon, Bethel, Bontnewydd, Caeathro, Bry...

Live comparison for LL55 area. Tracking 2 stations across 27 brands. For a detailed breakdown including 7-day price trends, market competition analysis, and savings tips, and also find Today’s Cheapest Petrol and Diesel in Caernarfon, Bethel, Bontnewydd, Caeathro, Brynrefail, Clwt-y-Bont, Deiniolen, Penisarwaun, Beddgelert, Ceunant, Cwm-y-Glo, Llanberis, Llanrug, Nant Gwynant, Nant Peris, Waunfawr .

Wales 2 Stations 2 Brands
Updated 19 Mar 2026
View Caernarfon, Bethel, Bontnewydd, Caeathro, Brynrefail, Clwt-y-Bont, Deiniolen, Penisarwaun, Beddgelert, Ceunant, Cwm-y-Glo, Llanberis, Llanrug, Nant Gwynant, Nant Peris, Waunfawr on the Fuel Map

Compare all 2 stations visually on our interactive map to find the cheapest fuel near your route.

Open Fuel Map
7-Day Price Movement
Petrol (E10)
140.9p 144.7p
3.8p (2.7%)
Diesel (B7)
160.1p 166.5p
6.4p (4%)
Cheapest Today
Petrol
MORRISONS
FFORDD Y GOGLEDD (NO...
137.9p
View Details
Super Unleaded
Shell
GWALIA GARAGE LTD, C...
154.9p
View Details
Diesel
MORRISONS
FFORDD Y GOGLEDD (NO...
157.9p
View Details
Area Averages vs National
Petrol
141.4p
▼ 2.8p vs UK Avg
Super Unleaded
155.4p
▼ 6.8p vs UK Avg
Diesel
166.9p
▲ 1.0p vs UK Avg
All Fuel Stations in Caernarfon, Bethel, Bontnewydd, Caeathro, Brynrefail, Clwt-y-Bont, Deiniolen, Penisarwaun, Beddgelert, Ceunant, Cwm-y-Glo, Llanberis, Llanrug, Nant Gwynant, Nant Peris, Waunfawr (LL55)
MORRISONS
FFORDD Y GOGLEDD (NORTH ROAD), CAERNARFON, GWYNEDD, WALES
View
E10
137.9
E5
155.9
B7
157.9
9 minutes ago
Shell
GWALIA GARAGE LTD, CAEATHRO, CAERNARFON, LL55 2SS, CAERNARFON, Wales
View
E10
144.9
E5
154.9
B7
175.9
17 minutes ago
Frequently Asked Questions About Fuel in Caernarfon, Bethel, Bontnewydd, Caeathro, Brynrefail, Clwt-y-Bont, Deiniolen, Penisarwaun, Beddgelert, Ceunant, Cwm-y-Glo, Llanberis, Llanrug, Nant Gwynant, Nant Peris, Waunfawr

As of 19 March 2026, the cheapest E10 petrol in Caernarfon, Bethel, Bontnewydd, Caeathro, Brynrefail, Clwt-y-Bont, Deiniolen, Penisarwaun, Beddgelert, Ceunant, Cwm-y-Glo, Llanberis, Llanrug, Nant Gwynant, Nant Peris, Waunfawr is 137.9p at MORRISONS, FFORDD Y GOGLEDD (NORTH ROAD), CAERNARFON, GWYNEDD, WALES.

There is currently a 7.0p difference between the cheapest and most expensive stations in Caernarfon, Bethel, Bontnewydd, Caeathro, Brynrefail, Clwt-y-Bont, Deiniolen, Penisarwaun, Beddgelert, Ceunant, Cwm-y-Glo, Llanberis, Llanrug, Nant Gwynant, Nant Peris, Waunfawr. For a standard 55-litre family car, that equals a saving of £3.85 per tank.

We update prices daily using data provided directly by fuel stations via the Competition and Markets Authority (CMA) Open Data scheme. This is a UK Government initiative requiring all major retailers to report live prices, ensuring you see the most accurate data for the Gwynedd area.

Not today. MORRISONS is actually cheaper than local supermarkets in LL55. It's always worth comparing before filling up.

We are currently tracking 2 active fuel stations in the LL55 area, operated by 2 different brands including MORRISONS, Shell and more.

The cheapest B7 diesel in Caernarfon, Bethel, Bontnewydd, Caeathro, Brynrefail, Clwt-y-Bont, Deiniolen, Penisarwaun, Beddgelert, Ceunant, Cwm-y-Glo, Llanberis, Llanrug, Nant Gwynant, Nant Peris, Waunfawr is currently 157.9p at MORRISONS. You can also use our interactive fuel map to compare diesel prices visually.
Nearby Locations
Y Felinheli (LL56) Llanfairpwllgwyngyll, Brynsiencyn, Dwyran, Newborough (LL61) Gaerwen, Llanddaniel, Llangaffo, Star (LL60) Caernarfon, Clynnogfawr, Llanaelhaearn, Llandwrog, Pontllyfni, Saron, Trefor, Llanllyfni, Nantlle, Penygroes, Rhyd Ddu, Talysarn, Bontnewydd, Carmel, Dinas, Groeslon, Rhosgadfan, Rhostryfan (LL54) Menai Bridge, Llandegfan, Llansadwrn (LL59) Pentraeth, Red Wharf Bay, Rhoscefnhir (LL75) Bangor, Llanllechid, Rachub, Talybont, Bethesda, Glasinfryn, Llandygai, Mynydd Llandygai, Rhiwlas, Tregarth (LL57) Garndolbenmaen (LL51)

Prices sourced from the UK Government CMA Open Data Scheme, updated every 30 minutes. CheckFuelPrices is editorially independent — read our policy.