Winchmore Hill Esso Express: 167.9p a litre, 0.9 miles away. 2.0p a litre cheaper: saves £1.10 a tank, and costs about 34p of fuel to get there and back. Worth the trip.
Mfg Bush Hill: 167.9p a litre, 1.1 miles away. 2.0p a litre cheaper: saves £1.10 a tank, and costs about 41p of fuel to get there and back. Worth the trip.
Mfg Northumberland Park: 167.9p a litre, 2.0 miles away. 2.0p a litre cheaper: saves £1.10 a tank, and costs about 76p of fuel to get there and back. Worth the trip.
Mfg Southgate: 167.9p a litre, 2.5 miles away. 2.0p a litre cheaper: saves £1.10 a tank, and costs about 95p of fuel to get there and back. Worth the trip.
Mfg Morrisons London Chingford: 167.9p a litre, 2.8 miles away. 2.0p a litre cheaper: saves £1.10 a tank, and costs about £1.06 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.