Unleaded: 171.9p a litre, 0.2p over the national average, filed Sunday 25 October
Unleaded within 5 miles
Asda Waterlooville Superstore: 169.7p a litre, 2.8 miles away. 2.2p a litre cheaper: saves £1.21 a tank, and costs about £1.08 of fuel to get there and back. Worth the trip.
Sainsburys Farlington: 169.9p a litre, 1.3 miles away. 2.0p a litre cheaper: saves £1.10 a tank, and costs about 50p of fuel to get there and back. Worth the trip.
All Saints Service Station: 169.9p a litre, 2.9 miles away. 2.0p a litre cheaper: saves £1.10 a tank, and costs about £1.11 of fuel to get there and back. Not worth the trip.
Park Lane Service Station: 169.9p a litre, 3.3 miles away. 2.0p a litre cheaper: saves £1.10 a tank, and costs about £1.27 of fuel to get there and back. Not worth the trip.
Green Road Service Station: 169.9p a litre, 3.9 miles away. 2.0p a litre cheaper: saves £1.10 a tank, and costs about £1.50 of fuel to get there and back. Not worth the trip.
Portsmouth Extra - Petrol Filling Station: 170.9p a litre, 1.1 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about 42p 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.