Northwood

The cheapest unleaded in town currently starts near 144p per litre. The very top of the local range is set by a small number of expensive outliers, and most stations sit much closer together than the headline gap suggests.

The supermarket sites, including Asda and Costco, tend to set the floor for prices here. 4 of the 40 local forecourts are supermarket-run, and the rest split between branded and independent operators.

Costco around Hartspring Lane has been setting the cheapest unleaded price locally of late. Forecourts on Old Dairy Lane and Church Road carry much of the passing trade, and their prices often move first.

On average, unleaded here runs a little under the wider Greater London figure. For diesel, expect an average of roughly 175p per litre locally.

Everything within about 8 km of the centre is included, so edge-of-town and retail park sites appear alongside the central forecourts. The cheapest station in Northwood is not fixed; the low spot moves between forecourts through the week, so the current ordering matters more than habit.

The table below carries the exact live figures per station, and alerts can flag a drop at the forecourts you actually use.