Unleaded: 175.9p a litre, 4.2p over the national average, filed Friday 30 October
Diesel: 200.9p a litre, 2.2p over the national average, filed Sunday 25 October
Unleaded within 5 miles
Green Road Service Station: 169.9p a litre, 0.9 miles away. 6.0p a litre cheaper: saves £3.30 a tank, and costs about 34p of fuel to get there and back. Worth the trip.
All Saints Service Station: 169.9p a litre, 1.1 miles away. 6.0p a litre cheaper: saves £3.30 a tank, and costs about 42p of fuel to get there and back. Worth the trip.
Sainsburys Farlington: 169.9p a litre, 3.5 miles away. 6.0p a litre cheaper: saves £3.30 a tank, and costs about £1.35 of fuel to get there and back. Worth the trip.
Portsmouth Extra - Petrol Filling Station: 170.9p a litre, 3.7 miles away. 5.0p a litre cheaper: saves £2.75 a tank, and costs about £1.43 of fuel to get there and back. Worth the trip.
Mfg North End: 171.9p a litre, 1.1 miles away. 4.0p a litre cheaper: saves £2.20 a tank, and costs about 42p of fuel to get there and back. Worth the trip.
Rontec Portsbridge: 171.9p a litre, 3.1 miles away. 4.0p a litre cheaper: saves £2.20 a tank, and costs about £1.21 of fuel to get there and back. 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.