Shell Darwen, BB3 0DB. A motorway service area, where you have no choice.
What it is charging
Unleaded: 178.9p a litre, 7.2p over the national average, filed Friday 30 October
Unleaded within 5 miles
Lockmill Service Station: 167.9p a litre, 1.5 miles away. 11.0p a litre cheaper: saves £6.05 a tank, and costs about 57p of fuel to get there and back. Worth the trip.
Tottenham Road Garage LTD: 169.9p a litre, 0.5 miles away. 9.0p a litre cheaper: saves £4.95 a tank, and costs about 19p of fuel to get there and back. Worth the trip.
Mfg Savoy: 169.9p a litre, 0.7 miles away. 9.0p a litre cheaper: saves £4.95 a tank, and costs about 27p of fuel to get there and back. Worth the trip.
Mfg Ewood: 169.9p a litre, 0.7 miles away. 9.0p a litre cheaper: saves £4.95 a tank, and costs about 27p of fuel to get there and back. Worth the trip.
Asda Blackburn Superstore: 169.9p a litre, 1.9 miles away. 9.0p a litre cheaper: saves £4.95 a tank, and costs about 73p of fuel to get there and back. Worth the trip.
Bolton Road Service Station: 169.9p a litre, 2.0 miles away. 9.0p a litre cheaper: saves £4.95 a tank, and costs about 77p 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.