Petrol and diesel prices at Costco Wholesale Haydock

Costco Wholesale Haydock, WA11 9FA.

What it is charging

Unleaded: 162.9p a litre, 8.8p under the national average, filed Saturday 31 October
Diesel: 188.9p a litre, 9.8p under the national average, filed Saturday 31 October
Super unleaded: 171.9p a litre, filed Saturday 31 October

West End road Service Station: 161.9p a litre, 1.7 miles away. 1.0p a litre cheaper: saves 55p a tank, and costs about 62p of fuel to get there and back. Not worth the trip.
Asda Haydock East Lancashire Road Petrol Filling Station: 165.7p a litre, 0.2 miles away
Asda Golborne Superstore: 165.7p a litre, 2.4 miles away
Haydock Church RD Superstore - Petrol Filling Station: 166.9p a litre, 0.7 miles away
Asda ST Helens Superstore: 167.7p a litre, 3.6 miles away
Mfg Newton LE Willows: 167.9p a litre, 1.4 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.