Compare Asda petrol and diesel prices across forecourts in and around Portstewart, Northern Ireland. Cheapest unleaded from 162.7p, diesel from 189.7p. Updated today, 23 October 2026.
| Forecourt | Unleaded | Diesel | Distance |
|---|---|---|---|
| ASDA COLERAINE SUPERSTORE 1 RING RD |
162.7p | 189.7p | 4.1 mi |