Stevenage

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 Sainsburys and Tesco, tend to set the floor for prices here.

5 of the 15 local forecourts are supermarket-run, and the rest split between branded and independent operators. Costco around Gunnels Wood Road has been setting the cheapest unleaded price locally of late.

Several of the busier sites sit along Monkswood Way and Arlington Business Park, so you can check them against each other without leaving your usual route. The town's unleaded average sits slightly below the East of England norm at the moment.

For diesel, expect an average of roughly 164p 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.

If you drive through Stevenage regularly, note that the price ordering below changes often enough that last month's cheapest stop may not be this week's. The table below carries the exact live figures per station, and alerts can flag a drop at the forecourts you actually use.