Petrol and diesel prices at Asda Burgh Heath Supercentre

Asda Burgh Heath Supercentre, KT20 5NZ.

What it is charging

Unleaded: 168.9p a litre, 2.8p under the national average, filed Friday 23 October
Diesel: 197.9p a litre, 0.8p under the national average, filed Monday 26 October

Mfg Tadworth: 167.9p a litre, 1.0 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about 38p of fuel to get there and back. Worth the trip.
Mfg Coulsdon: 167.9p a litre, 3.3 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about £1.25 of fuel to get there and back. Not worth the trip.
Tattenham Service Station: 169.9p a litre, 0.8 miles away
Ewell SF Connect: 169.9p a litre, 3.3 miles away
Shell Etwelle: 169.9p a litre, 3.3 miles away
Mfg Sutton Court: 169.9p a litre, 3.6 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.