Petrol and diesel prices at Supervalu Portstewart

Supervalu Portstewart, BT55 7PU.

What it is charging

• Unleaded: 159.9p a litre, 11.8p under the national average, filed Wednesday 28 October
• Diesel: 187.9p a litre, 10.8p under the national average, filed Thursday 22 October

Unleaded within 5 miles

• Morans Centra - GO Service Station: 159.9p a litre, 4.4 miles away
• Asda Coleraine Superstore: 160.7p a litre, 4.3 miles away
• Nicholl Auto 365 Coleraine: 160.9p a litre, 4.0 miles away
• Sainsburys Coleraine: 160.9p a litre, 4.6 miles away
• Bush Filling Station: 161.9p a litre, 3.5 miles away
• Eurospar Millburn: 163.9p a litre, 3.4 miles away

On a 55-litre tank at 40mpg. The distance is straight-line rather than by road, so a real trip is longer than the one costed here.