Petrol and diesel prices in Llanishen
Cheapest petrol near Llanishen right now: 172.9p at Tesco Cardiff Extra, reported 15:26 on 14 Oct. Cheapest diesel: 197.9p at MFG Morrisons Cardiff Tyglass.
- Asda Cardiff Coryton Supercentre showed 172.7p for petrol when it last reported, on 2 Oct. That price may have changed.
- Asda Cardiff Coryton Supercentre showed 196.7p for diesel when it last reported, on 13 Oct. That price may have changed.
- Petrol is 1.0p a litre cheaper in Caerphilly, 4 miles away, from 171.9p.
Distance in miles from Llanishen town centre, as the crow flies. Showing stations within 3 miles.
Distance in miles from Llanishen town centre, as the crow flies. Showing stations within 3 miles.
Price trend
We started recording daily average prices in Llanishen on 16 October 2026. The trend chart appears here once there are a few days of data.
Not in central Llanishen?
Enter your postcode to sort stations by price, best value once the drive is counted, or distance.
All petrol stations in Llanishen
1 petrol station with a Llanishen address, cheapest petrol first.
| Station | Petrol | Diesel | Reported |
|---|---|---|---|
| MFG Morrisons Cardiff TyglassTy- Glas Road, Llanishen, CF14 5EP | 172.9p | 197.9p | 14 Oct |
Supermarket fuel prices in and near Llanishen
4 Asda, 2 Morrisons and 2 Tesco forecourts within 5 miles of Llanishen, cheapest petrol first.
| Station | Petrol | Diesel | Miles |
|---|---|---|---|
| Asda Leckwith Road SuperstoreCapital Retail Park-Leckwith Road, Cardiff, CF11 8AZ | 171.7p | 196.7p | 4 |
| MFG Morrisons CaerphillyBedwas Road, Caerphilly, CF83 3AP | 171.9p | 197.9p | 4 |
| Asda Caerphilly SuperstorePontygwindy Road, Caerphilly, CF83 3SX | 171.9p | 197.9p | 4 |
| Asda Cardiff Bay SuperstoreFerry Road Retail Park, Cardiff, CF11 0JR | 171.9p | 196.9p | 5 |
| Asda Cardiff Coryton SupercentreLongwood Drive, Coryton Roundabout, Cardiff, CF14 7EW | 172.7p | 196.7p | 2 |
| MFG Morrisons Cardiff TyglassTy- Glas Road, Llanishen, CF14 5EP | 172.9p | 197.9p | <1 |
| Tesco Cardiff Tyn-Y-Parc ExpressTesco Express, Cardiff, CF14 6BN | 172.9p | 197.9p | <1 |
| Tesco Cardiff ExtraExcelsior Estate, Cardiff, CF14 3AT | 172.9p | 196.9p | 2 |
Nearest 24-hour petrol stations to Llanishen
No station in Llanishen sells fuel round the clock. These are the nearest that do. Shop hours can be shorter; check the station page.
| Station | Petrol | Diesel | Miles |
|---|---|---|---|
| Asda Cardiff Coryton SupercentreLongwood Drive, Coryton Roundabout, Cardiff, CF14 7EW | 172.7p | 196.7p | 2 |
| Tesco Cardiff ExtraExcelsior Estate, Cardiff, CF14 3AT | 172.9p | 196.9p | 2 |
| Texaco City Filling StationPremier, 99-101, North Road, Caerdydd, Cf14 3ad, CF14 3AD | 173.9p | 199.9p | 2 |
Super unleaded, premium diesel and AdBlue in Llanishen
Super unleaded (E5)
26 stations in and around Llanishen sell super unleaded (e5), averaging 190.9p a litre. The cheapest is Tesco Cardiff Extra at 182.9p.
Premium diesel
16 stations in and around Llanishen sell premium diesel, averaging 217.4p a litre. The cheapest is MFG Morrisons Cardiff Newport Road at 207.9p.
AdBlue
AdBlue at the pump at Texaco Pentwyn Service Station, Welcome Break Cardiff, Valero MFG Cardinal, BP Rontec Penrhos and BP Rontec Cardiff West.
Fuel price alerts for Llanishen
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 Llanishen
Where is the cheapest petrol in Llanishen?
Today the cheapest petrol near Llanishen is 172.9p a litre at Tesco Cardiff Extra, Excelsior Estate, Cardiff, CF14 3AT.
How much is diesel in Llanishen today?
Diesel averages 197.9p a litre across 1 forecourt in Llanishen, against a UK average of 199.2p.
Which supermarket has the cheapest petrol in Llanishen?
Asda Leckwith Road Superstore is cheapest at 171.7p a litre, 4 miles from the centre. We compare 8 supermarket forecourts in and near Llanishen 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 on 16 Oct. Each forecourt's table row shows the day its price was reported.
Is there a 24-hour petrol station in Llanishen?
Not in Llanishen itself. The nearest is Asda Cardiff Coryton Supercentre, 2 miles away.