Merthyr Tydfil

The cheapest unleaded in town currently starts near 146p per litre. Unleaded currently varies by roughly 9p per litre between the cheapest and dearest forecourts, which is enough to notice on a full tank.

The supermarket sites, including Asda, tend to set the floor for prices here. 2 of the 10 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 Asda around Riverside Retail Park. Forecourts on Riverside Retail Park and New Cardiff Road carry much of the passing trade, and their prices often move first.

Unleaded prices around Merthyr Tydfil sit broadly in line with the rest of South Wales. For diesel, expect an average of roughly 164p per litre locally.

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. If you drive through Merthyr Tydfil 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.