Cwmbran

At the bottom of the local market, unleaded starts around 148p per litre right now. Right now roughly 12p per litre separates the cheapest unleaded from the dearest locally.

The supermarket sites, including Morrisons and Sainsburys, tend to set the floor for prices here. 6 of the 21 local forecourts are supermarket-run, and the rest split between branded and independent operators.

The low end of the market has recently been held by Tesco around Lower Bridge Street. Several of the busier sites sit along Malpas Road and Chepstow Road, so you can check them against each other without leaving your usual route.

On average, unleaded here runs a little under the wider South Wales figure. Diesel averages around 170p per litre across the stations listed for Cwmbran.

The comparison covers stations up to roughly 8 km out, which keeps out-of-town supermarkets and bypass sites in the same view as the town centre. The cheapest station in Cwmbran is not fixed; the low spot moves between forecourts through the week, so the current ordering matters more than habit.

Use the live table for the exact prices at each site, or set an alert if you would rather be told when your usual stations drop.