Petrol and diesel prices at Mfg Bell Bar

Mfg Bell Bar, AL9 6DB.

What it is charging

Unleaded: 168.9p a litre, 2.8p under the national average, filed Friday 30 October
Diesel: 199.9p a litre, 1.2p over the national average, filed Wednesday 21 October

Potters Bar Superstore - Petrol Filling Station: 167.9p a litre, 2.8 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about £1.06 of fuel to get there and back. Not worth the trip.
Mfg Potters Bar: 167.9p a litre, 3.0 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about £1.14 of fuel to get there and back. Not worth the trip.
Yarl Petroleum Limited: 169.7p a litre, 2.3 miles away
Welham Green: 169.9p a litre, 1.3 miles away
Potters Bar SF Connect: 169.9p a litre, 2.8 miles away
Mfg Morrisons Welwyn Garden City: 172.9p a litre, 4.5 miles away

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.