What is the average petrol price in Casnewydd?

The average unleaded (E10) petrol price in Casnewydd is currently 159.5p per litre (approx. £7.25/gal), based on live data from 5 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.

What is the average diesel price in Casnewydd?

The average diesel (B7) price in Casnewydd is currently 178.5p per litre (approx. £8.11/gal). This is based on live data from forecourts in the area, updated every 30 minutes.

Which is the cheapest petrol station in Casnewydd?

TESCO at UNIT 6 HARLECH RETAIL PARK, CARDIFF ROAD, CASNEWYDD currently has the cheapest reported unleaded petrol in Casnewydd at 156.9p per litre (approx. £7.13/gal). Prices change regularly, so check this page for the latest.

Which is the most expensive petrol station in Casnewydd?

According to official UK government fuel price data, ESSO SINCLAIR GARAGES (NP19 0HE) currently has the highest reported unleaded (E10) price in Casnewydd at 162.9p per litre (approx. £7.41/gal). Prices are refreshed every 30 minutes, so this can change through the day.

How do I find the cheapest fuel near Casnewydd?

Use the search box above to enter your postcode. fuel.co.uk will show you every forecourt ranked cheapest first, with live prices updated every 30 minutes from the GOV.UK Fuel Finder.

Live prices

Cheapest petrol and diesel prices in Casnewydd

5 forecourts tracked in Casnewydd (5 reporting unleaded (E10), 5 reporting diesel (B7), 3 reporting premium (E5), 1 reporting super diesel). Prices last refreshed at 8:02pm on 30 July 2026.

The cheapest reported unleaded petrol (E10) in Casnewydd is 156.9p per litre at TESCO, UNIT 6 HARLECH RETAIL PARK, CARDIFF ROAD, CASNEWYDD. The average across 5 forecourts currently reporting this grade is 159.5p per litre, so choosing the cheapest rather than an average-priced forecourt saves about £1.30 on a 50-litre fill. That local average is 0.3p per litre below the UK average of 159.8p.

The average has risen 0.6p per litre since yesterday. The average has risen 4.4p per litre since last week.

Prices last refreshed at 8:02pm on 30 July 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.

Unleaded Prices

Unleaded (E10)

Highest: 159.9p/lapprox. £7.27/gal
Average: 159.5p/lapprox. £7.25/gal
Lowest: 156.9p/lapprox. £7.13/gal

Diesel Prices

Diesel (B7)

Highest: 179.9p/lapprox. £8.18/gal
Average: 178.5p/lapprox. £8.11/gal
Lowest: 178.9p/lapprox. £8.13/gal

Premium Unleaded Prices

Premium Unleaded (E5)

Highest: 188.9p/lapprox. £8.59/gal
Average: 176.6p/lapprox. £8.03/gal
Lowest: 166.9p/lapprox. £7.59/gal

Super Diesel Prices

Super Diesel (SDV)

Highest: 192.9p/lapprox. £8.77/gal
Average: 192.9p/lapprox. £8.77/gal
Lowest: 192.9p/lapprox. £8.77/gal

All forecourts in Casnewydd

Sort by

Cheapest unleaded e10

TESCO

UNIT 6 HARLECH RETAIL PARK, CARDIFF ROAD, CASNEWYDD · NP20 3BA

Usually cheapest midnight to 5am, priciest 4pm to 9pm here

Directions

156.9p/L

approx. £7.13/gal

Diesel B7

171.9p

approx. £7.81/gal

Premium E5

166.9p

approx. £7.59/gal

GULF

HILLCROFT GARAGE, CHEPSTOW ROAD, LANGSTONE, CASNEWYDD · NP18 2JN

Usually cheapest 1am to 6am, priciest 8pm to midnight here

Directions

158.9p/L

approx. £7.22/gal

Diesel B7

179.9p

approx. £8.18/gal

ESSO

CHEPSTOW RD, CASNEWYDD · NP19 9EZ

Usually cheapest midnight to 5am, priciest 7pm to midnight here

Directions

158.9p/L

approx. £7.22/gal

Diesel B7

178.9p

approx. £8.13/gal

Premium E5

173.9p

approx. £7.91/gal

Super Diesel

192.9p

approx. £8.77/gal

SPAR

SPAR STORES, PONTHIR ROAD, CAERLEON, CASNEWYDD · NP18 3NY

Usually cheapest midnight to 5am, priciest 4pm to 9pm here

Directions

159.9p/L

approx. £7.27/gal

Diesel B7

178.9p

approx. £8.13/gal

ESSO SINCLAIR GARAGES

SINCLAIR GARAGES, CORPORATION ROAD, CASNEWYDD, NP19 0HE, CASNEWYDD · NP19 0HE

Usually cheapest 1am to 6am, priciest 4pm to 9pm here

Directions

162.9p/L

approx. £7.41/gal

Diesel B7

182.9p

approx. £8.31/gal

Premium E5

188.9p

approx. £8.59/gal

Search near Casnewydd

Ask the fuel analyst

Answers come straight from recorded official price data, refreshed every 30 minutes.

Cheapest reported unleaded

TESCO

UNIT 6 HARLECH RETAIL PARK, CARDIFF ROAD, CASNEWYDD

156.9p/L

Cheapest reported diesel

TESCO

UNIT 6 HARLECH RETAIL PARK, CARDIFF ROAD, CASNEWYDD

171.9p/L

By fuel grade in Casnewydd

Cheapest unleaded petrol (E10) in Casnewydd Cheapest diesel (B7) in Casnewydd Cheapest premium unleaded (E5) in Casnewydd Cheapest super diesel in Casnewydd 24-hour petrol stations in Casnewydd

Nearby areas

Petrol prices in Pontypool Petrol prices in Caerphilly Petrol prices in Chepstow Petrol prices in Blackwood Petrol prices in Cardiff Petrol prices in Clevedon Petrol prices in Pontypridd Petrol prices in Abergavenny

Save more as a driver

Find a trusted garage in Casnewydd Get a car valuation

Prices are sourced from official UK government fuel-price data (Open Government Licence v3.0). Updated every 30 minutes.

Questions about fuel prices in Casnewydd

What is the average petrol price in Casnewydd?: The average unleaded (E10) petrol price in Casnewydd is currently 159.5p per litre (approx. £7.25/gal), based on live data from 5 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.
What is the average diesel price in Casnewydd?: The average diesel (B7) price in Casnewydd is currently 178.5p per litre (approx. £8.11/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
Which is the cheapest petrol station in Casnewydd?: TESCO at UNIT 6 HARLECH RETAIL PARK, CARDIFF ROAD, CASNEWYDD currently has the cheapest reported unleaded petrol in Casnewydd at 156.9p per litre (approx. £7.13/gal). Prices change regularly, so check this page for the latest.
Which is the most expensive petrol station in Casnewydd?: According to official UK government fuel price data, ESSO SINCLAIR GARAGES (NP19 0HE) currently has the highest reported unleaded (E10) price in Casnewydd at 162.9p per litre (approx. £7.41/gal). Prices are refreshed every 30 minutes, so this can change through the day.
How do I find the cheapest fuel near Casnewydd?: Use the search box above to enter your postcode. fuel.co.uk will show you every forecourt ranked cheapest first, with live prices updated every 30 minutes from the GOV.UK Fuel Finder.