Petrol (E10) prices in Casnewydd averaged 148.3p per litre in March 2026, up 10.1p from the previous period. The highest recorded price was 168.0p in February 2026.

Prices have been trending upward in Casnewydd recently. Drivers may want to shop around and compare prices between stations to find the best deal.

Over this period, Petrol (E10) prices in Casnewydd ranged from 129.9p to 168.0p per litre — a spread of 38.1p. This significant variation means it pays to compare prices between stations.