Tgc - Cockfosters: 167.9p a litre, 0.4 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about 15p of fuel to get there and back. Worth the trip.
Barnet Esso Express: 167.9p a litre, 0.8 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about 30p of fuel to get there and back. Worth the trip.
Mfg New Barnet: 167.9p a litre, 0.9 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about 34p of fuel to get there and back. Worth the trip.
Mfg Southgate: 167.9p a litre, 1.5 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about 57p of fuel to get there and back. Not worth the trip.
Tgc - Barnet: 167.9p a litre, 1.6 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about 61p of fuel to get there and back. Not 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.