Petrol and diesel prices at Asda Pembroke Dock Supermarket

Asda Pembroke Dock Supermarket, SA72 6DA.

What it is charging

Unleaded: 167.7p a litre, 4.0p under the national average, filed Friday 30 October

Victoria Filling Station: 164.7p a litre, 4.0 miles away. 3.0p a litre cheaper: saves £1.65 a tank, and costs about £1.49 of fuel to get there and back. Worth the trip.
Ascona Green Garage Service Station: 168.7p a litre, 1.5 miles away
Ascona Crossways Service Station: 168.7p a litre, 2.1 miles away
Pembroke Dock Superstore - Petrol Filling Station: 169.9p a litre, 0.3 miles away
Rontec Haverfordwest: 169.9p a litre, 4.8 miles away
CKs Supermarket: 170.1p 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.