Fuel prices
Petrol and diesel prices in Casnewydd
Compare 5 stations and find the cheapest fuel in Casnewydd today.
In Casnewydd, unleaded petrol (E10) averages 172.7p per litre and standard diesel averages 199.1p per litre. The cheapest unleaded is at TESCO for 169.9p per litre. Prices updated 4 November 2026, 15:22.
Average fuel prices in Casnewydd
Unleaded
172.7p/L
Lowest 169.9p · UK avg 171.0p
Diesel
199.1p/L
Lowest 196.9p · UK avg 198.4p
Super unleaded
190.2p/L
Lowest 179.9p · UK avg 190.0p
Premium diesel
213.9p/L
Lowest 213.9p · UK avg 217.7p
Latest price update in Casnewydd: 4 Nov 2026, 15:22. Source: GOV.UK Fuel Finder.
Cheapest unleaded in Casnewydd
-
TESCO Cheapest
UNIT 6 HARLECH RETAIL PARK, CASNEWYDD, NP20 3BA
169.9p
-
ESSO
CHEPSTOW RD, CASNEWYDD, NP19 9EZ
170.9p
-
Gulf
HILLCROFT GARAGE, CASNEWYDD, NP18 2JN
171.9p
-
Spar
SPAR STORES, CASNEWYDD, NP18 3NY
172.9p
-
Esso Sinclair garages
SINCLAIR GARAGES, CASNEWYDD, NP19 0HE
177.9p
Cheapest diesel in Casnewydd
-
TESCO Cheapest
UNIT 6 HARLECH RETAIL PARK, CASNEWYDD, NP20 3BA
196.9p
-
Gulf
HILLCROFT GARAGE, CASNEWYDD, NP18 2JN
198.9p
-
ESSO
CHEPSTOW RD, CASNEWYDD, NP19 9EZ
199.9p
-
Esso Sinclair garages
SINCLAIR GARAGES, CASNEWYDD, NP19 0HE
199.9p
-
Spar
SPAR STORES, CASNEWYDD, NP18 3NY
199.9p
Fuel prices in Casnewydd: FAQ
What is the average price of petrol in Casnewydd?
Unleaded (E10) in Casnewydd averages 172.7p per litre across 5 stations, ranging from 169.9p to 177.9p. That is 1.7p above the UK average.
What is the average price of diesel in Casnewydd?
Standard diesel in Casnewydd averages 199.1p per litre across 5 stations, ranging from 196.9p to 199.9p. That is 0.7p above the UK average.
Where is the cheapest petrol in Casnewydd?
Right now the cheapest unleaded we can see in Casnewydd is at TESCO, UNIT 6 HARLECH RETAIL PARK, CASNEWYDD, NP20 3BA, at 169.9p per litre. Prices change through the day, so check before you set off.
How often are these fuel prices updated?
We refresh prices every 15 minutes from the GOV.UK Fuel Finder scheme, where forecourts report their pump prices.
Fuel prices in other towns and cities
Contains public sector information licensed under the Open Government Licence v3.0. Prices from the GOV.UK Fuel Finder scheme.
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