Tesco Rawtenstall - Petrol Filling Station: 163.9p a litre, 4.7 miles away. 8.0p a litre cheaper: saves £4.40 a tank, and costs about £1.75 of fuel to get there and back. Worth the trip.
Gem Rawtenstall: 165.9p a litre, 4.3 miles away. 6.0p a litre cheaper: saves £3.30 a tank, and costs about £1.62 of fuel to get there and back. Worth the trip.
Rawtenstall: 167.9p a litre, 4.5 miles away. 4.0p a litre cheaper: saves £2.20 a tank, and costs about £1.71 of fuel to get there and back. Worth the trip.
Mfg Accrington: 168.9p a litre, 0.4 miles away. 3.0p a litre cheaper: saves £1.65 a tank, and costs about 15p 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.