Petrol and diesel prices in Casnewydd
Cheapest petrol near Casnewydd right now: 173.9p at Tesco Newport Spytty Extra, reported 17:11 on 14 Oct. Petrol in Casnewydd averages 176.3p, 2.1p above the UK average. Cheapest diesel: 199.9p at Esso MFG Newport. Diesel in Casnewydd averages 199.5p, 0.3p above the UK average.
- Asda Newport Pillgwenlly Superstore showed 172.7p for petrol when it last reported, on 13 Oct. That price may have changed.
- Asda Newport Pillgwenlly Superstore showed 196.7p for diesel when it last reported, on 2 Oct. That price may have changed.
- Petrol is 2.0p a litre cheaper in Newport, Wales, 2 miles away, from 171.9p.
- Supermarket forecourts in Casnewydd average 173.9p for petrol, 3.0p less than other forecourts.
- 1 of 5 forecourts here reported a petrol price in the last 3 days. Older prices show the date they were reported.
- Casnewydd is in the Newport council area, 115th dearest of 354 for petrol in the council league table, averaging 175.7p.
Distance in miles from Casnewydd town centre, as the crow flies. Showing stations within 3 miles.
Distance in miles from Casnewydd town centre, as the crow flies. Showing stations within 3 miles.
Price trend
We started recording daily average prices in Casnewydd on 16 October 2026. The trend chart appears here once there are a few days of data.
Not in central Casnewydd?
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All petrol stations in Casnewydd
5 petrol stations with a Casnewydd address, cheapest petrol first.
| Station | Petrol | Diesel | Reported |
|---|---|---|---|
| Tesco Newport ExtraUnit 6 Harlech Retail Park, Casnewydd, NP20 3BA | 173.9p | 196.9p | 14 Oct |
| Gulf Hillcroft StoresHillcroft Garage, Casnewydd, NP18 2JN | 174.9p | 198.9p | 7 Oct |
| Newport Chepstow Rd Esso ExpressChepstow Rd, Casnewydd, NP19 9EZ | 175.9p | 199.9p | 15 Oct |
| Br PonthirSpar Stores, Casnewydd, NP18 3NY | 176.9p | 199.9p | 28 Sept |
| Esso Sinclair GaragesSinclair Garages, Casnewydd, NP19 0HE · Open 24 hours | 179.9p | 201.9p | 10 Oct |
Supermarket fuel prices in and near Casnewydd
3 Asda, 2 Sainsbury's, 2 Tesco and 1 Morrisons forecourts within 5 miles of Casnewydd, cheapest petrol first.
| Station | Petrol | Diesel | Miles |
|---|---|---|---|
| Sainsburys CwmbranLlewellyn Road, Cwmbran, NP44 1UL | 169.9p | 195.9p | 5 |
| MFG Morrisons CwmbranGrange Road, Torfaen, NP44 1QP | 170.9p | 195.9p | 5 |
| Asda Cwmbran Express PetrolHenllys Way, Newport, NP44 3JA | 171.9p | 196.9p | 4 |
| Asda Newport Pillgwenlly SuperstoreLower Dock Street, Newport, NP20 2BH | 172.7p | 196.7p | 1 |
| Sainsburys NewportAlbany Street, Newport, NP20 5NJ | 172.9p | 197.9p | 1 |
| Asda Newport SuperstorePencarn Way - Coedkernew, Newport, NP10 8XL | 173.7p | 196.7p | 4 |
| Tesco Newport Spytty ExtraSpytty Road, Newport, NP19 4TX | 173.9p | 196.9p | 2 |
| Tesco Newport ExtraUnit 6 Harlech Retail Park, Casnewydd, NP20 3BA | 173.9p | 196.9p | 3 |
24-hour petrol stations in Casnewydd
1 station sells fuel 24 hours a day in Casnewydd, cheapest petrol first. Shop hours can be shorter; check the station page.
| Station | Petrol | Diesel | Miles |
|---|---|---|---|
| Esso Sinclair GaragesSinclair Garages, Casnewydd, NP19 0HE | 179.9p | 201.9p | 1 |
Super unleaded, premium diesel and LPG in Casnewydd
Super unleaded (E5)
14 stations in and around Casnewydd sell super unleaded (e5), averaging 192.7p a litre. The cheapest is Sainsburys Cwmbran at 181.9p.
Premium diesel
7 stations in and around Casnewydd sell premium diesel, averaging 217.3p a litre. The cheapest is MFG Morrisons Cwmbran at 205.9p.
LPG (autogas)
LPG pumps at Asda Casnewydd Express Petrol.
Fuel price alerts for Casnewydd
Price alerts are coming soon. Join the waitlist and we'll email you when they start: an alert when fuel near you drops by 3p a litre or more, and the 10 cheapest pumps near your postcode every Friday.
Questions about fuel prices in Casnewydd
Where is the cheapest petrol in Casnewydd?
Today the cheapest petrol near Casnewydd is 173.9p a litre at Tesco Newport Spytty Extra, Spytty Road, Newport, NP19 4TX.
How much is diesel in Casnewydd today?
Diesel averages 199.5p a litre across 5 forecourts in Casnewydd, against a UK average of 199.2p.
Which supermarket has the cheapest petrol in Casnewydd?
Sainsburys Cwmbran is cheapest at 169.9p a litre, 5 miles from the centre. We compare 8 supermarket forecourts in and near Casnewydd above.
How up to date are these prices?
Forecourts report their prices to the government's Fuel Finder scheme and we refresh them twice a day. These were last updated 17:30 today. Each forecourt's table row shows the day its price was reported.
Is there a 24-hour petrol station in Casnewydd?
Yes. Esso Sinclair Garages sells fuel 24 hours a day.