Casnewydd Fuel Prices
Find the cheapest petrol and diesel in Casnewydd. Live prices from 6 fuel stations, updated hourly from the official Fuel Finder feed.
Fuel price answer
cheapest petrol and diesel in Casnewydd
As of 18 September 2026, the cheapest unleaded petrol in Casnewydd is 149.8p/L at Commercial Street Service Station Commercial Street Service Station, the cheapest diesel in Casnewydd is 163.8p/L at Commercial Street Service Station Commercial Street Service Station. Across 6 stations, unleaded averages 168.0p/L and diesel 189.7p/L. Supermarket forecourts in Casnewydd average 1.4p/L less than branded stations for unleaded.
Unleaded (E10)
149.8p cheapest
Diesel
163.8p cheapest
Cheapest Unleaded (E10) in Casnewydd
- 1. Commercial Street Service Station — Commercial Street Service Station · CASNEWYDD149.8p
- 2. Tesco — NEWPORT EXTRA - PETROL FILLING STATION · CASNEWYDD166.9p
- 3. Esso — NEWPORT CHEPSTOW RD ESSO EXPRESS · CASNEWYDD170.9p
- 4. Gulf — Hillcroft Stores · CASNEWYDD170.9p
- 5. Spar — BR Ponthir · CASNEWYDD173.9p
Cheapest Diesel in Casnewydd
- 1. Commercial Street Service Station — Commercial Street Service Station · CASNEWYDD163.8p
- 2. Tesco — NEWPORT EXTRA - PETROL FILLING STATION · CASNEWYDD188.9p
- 3. Spar — BR Ponthir · CASNEWYDD194.9p
- 4. Gulf — Hillcroft Stores · CASNEWYDD195.9p
- 5. Esso — Esso Sinclair garages · CASNEWYDD196.9p
Data freshness
Updated 17 Sept 2026, 15:15
Methodology
Citation
Source: PetrolPal, using official UK forecourt fuel price data. Cite: https://petrolpal.co.uk/fuel-prices/wales/casnewydd
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About Casnewydd Fuel Prices
PetrolPal tracks live fuel prices in Casnewydd using official UK Government data, updated hourly. Compare petrol and diesel prices from supermarkets, branded stations, and independents to find the cheapest fuel near you.
Prices in Casnewydd are based on stations in the Wales. View the Casnewydd statistics page for detailed price analytics including brand averages, price distribution, and historical trends.