Petrol and diesel prices at Asda Brighton Marina Superstore

Asda Brighton Marina Superstore, BN2 5UT.

What it is charging

Unleaded: 170.9p a litre, 0.8p under the national average, filed Thursday 29 October
Diesel: 192.9p a litre, 5.8p under the national average, filed Sunday 18 October

Mfg Peacehaven: 168.9p a litre, 4.9 miles away. 2.0p a litre cheaper: saves £1.10 a tank, and costs about £1.88 of fuel to get there and back. Not worth the trip.
Telscombe Service Station: 169.9p a litre, 4.0 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about £1.54 of fuel to get there and back. Not worth the trip.
Woodingdean Esso Express: 171.9p a litre, 2.0 miles away
Pgg Woodingdean: 171.9p a litre, 2.1 miles away
Mfg Downsway: 171.9p a litre, 2.2 miles away
Mfg Hove: 171.9p a litre, 3.3 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.