Petrol and diesel prices at Duffield Service Station

Duffield Service Station, DE56 4BZ.

What it is charging

Unleaded: 167.9p a litre, 3.8p under the national average, filed Tuesday 27 October

Costco Wholesale Derby: 164.9p a litre, 4.9 miles away. 3.0p a litre cheaper: saves £1.65 a tank, and costs about £1.83 of fuel to get there and back. Not worth the trip.
Mfg Morrisons Belper: 166.9p a litre, 2.7 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about £1.02 of fuel to get there and back. Not worth the trip.
Quadamill Ltd: 167.9p a litre, 2.4 miles away
Lion Garage: 168.9p a litre, 2.9 miles away
Mfg Morrisons Derby: 168.9p a litre, 3.0 miles away
Pottery Service Station: 168.9p a litre, 3.2 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.