Unleaded: 173.9p a litre, 2.2p over the national average, filed Friday 30 October
Diesel: 199.9p a litre, 1.2p over the national average, filed Wednesday 21 October
Super unleaded: 193.9p a litre, filed Friday 30 October
Unleaded within 5 miles
Sainsburys Apsley Mill: 162.9p a litre, 4.2 miles away. 11.0p a litre cheaper: saves £6.05 a tank, and costs about £1.55 of fuel to get there and back. Worth the trip.
Mfg Apsley: 166.9p a litre, 4.3 miles away. 7.0p a litre cheaper: saves £3.85 a tank, and costs about £1.63 of fuel to get there and back. Worth the trip.
Hemel Hempstead Extra - Petrol Filling Station: 166.9p a litre, 4.4 miles away. 7.0p a litre cheaper: saves £3.85 a tank, and costs about £1.66 of fuel to get there and back. Worth the trip.
Mfg Primrose: 167.9p a litre, 2.9 miles away. 6.0p a litre cheaper: saves £3.30 a tank, and costs about £1.10 of fuel to get there and back. Worth the trip.
Rontec Watford: 168.9p a litre, 3.2 miles away. 5.0p a litre cheaper: saves £2.75 a tank, and costs about £1.22 of fuel to get there and back. Worth the trip.
Mfg Everest Way: 168.9p a litre, 4.5 miles away. 5.0p a litre cheaper: saves £2.75 a tank, and costs about £1.72 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.