Northolt

At the bottom of the local market, unleaded starts around 146p per litre right now. 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 Tesco, tend to set the floor for prices here. 10 of the 70 local forecourts are supermarket-run, and the rest split between branded and independent operators.

Asda has been setting the cheapest unleaded price locally of late. Forecourts on Old Dairy Lane and Forty Lane carry much of the passing trade, and their prices often move first.

Average unleaded here tracks the wider Greater London figure closely. For diesel, expect an average of roughly 176p 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. Prices in Northolt can move mid-week as well as at weekends, so the ordering above is worth a glance even if you always use the same forecourt.

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