Unleaded: 186.9p a litre, 15.2p over the national average, filed Friday 30 October
Diesel: 206.9p a litre, 8.2p over the national average, filed Friday 30 October
Unleaded within 5 miles
Vst South Molton Services: 167.9p a litre, 2.6 miles away. 19.0p a litre cheaper: saves £10.45 a tank, and costs about 99p of fuel to get there and back. Worth the trip.
Woodside Services: 169.9p a litre, 3.2 miles away. 17.0p a litre cheaper: saves £9.35 a tank, and costs about £1.23 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.