Compare Tesco petrol and diesel prices across forecourts in and around Porthmadog, Conwy. Cheapest unleaded from 174.9p, diesel from 199.9p. Updated today, 23 October 2026.
| Forecourt | Unleaded | Diesel | Distance |
|---|---|---|---|
| PORTHMADOG SUPERSTORE - PETROL FILLING STATION TESCO STORES LTD |
174.9p | 199.9p | 0.4 mi |