Petrol and diesel prices at Mauchline Service Station

Mauchline Service Station, KA5 5AF.

What it is charging

• Unleaded: 172.9p a litre, 1.2p over the national average, filed Sunday 18 October

Unleaded within 5 miles

• Mfg Auchinleck: 159.9p a litre, 4.9 miles away. 13.0p a litre cheaper: saves £7.15 a tank, and costs about £1.78 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.