Petrol and diesel prices at Brora Fuel Express Automat

Brora Fuel Express Automat, KW9 6LN.

What it is charging

• Unleaded: 176.7p a litre, 5.0p over the national average, filed Wednesday 21 October

Unleaded within 5 miles

• Sutherland Arms Garage Ltd: 175.9p a litre, 0.2 miles away. 0.8p a litre cheaper: saves 44p a tank, and costs about 7p of fuel to get there and back. Worth the trip.

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.