Compare Asda petrol and diesel prices across forecourts in and around Merthyr Tydfil, South Glamorgan. Cheapest unleaded from 170.7p, diesel from 196.7p. Updated today, 23 October 2026.
| Forecourt | Unleaded | Diesel | Distance |
|---|---|---|---|
| ASDA ABERDARE SUPERSTORE RIVERSIDE RETAIL PARK |
170.7p | 196.7p | 4.5 mi |
| ASDA MERTHYR TYDFIL SUPERSTORE DOWLAIS TOP |
175.9p | 199.9p | 1.2 mi |