Cheapest petrol and diesel prices in Sarn

1 tracked forecourt in Sarn, last updated 5 October 2026. Prices are pence per litre.

Unleaded petrol (E10)

178.9p

cheapest · 178.9p average across 1 station

Diesel (B7)

203.9p

cheapest · 203.9p average across 1 station

Super unleaded (E5)

190.9p

cheapest · 190.9p average across 1 station

Premium diesel

215.9p

cheapest · 215.9p average across 1 station

Sarn price history

Daily average standard petrol and diesel prices across tracked local stations over the last 90 days.

Sarn stations ranked by price

Fuel prices by station, sorted by Unleaded petrol (E10) (cheapest first)
WELCOME BREAK SARN PARKWELCOME BREAK · CF32 9SY178.9p203.9p190.9p215.9p

Click a column heading to sort by that fuel — click again to flip the order.

Where these stations are

What drivers in Sarn should know

We are still building a full price picture for Sarn. As more forecourts report, this page will show the local spread between the cheapest and dearest pumps.

At 178.9p the average unleaded petrol (e10) price in Sarn is above the UK-wide average of 174.7p that PumpScan is tracking, a difference of 4.2p per litre.

Brands represented locally include WELCOME BREAK. Supermarket forecourts usually undercut motorway services by a wide margin, and prices in and around Sarn tend to move within a day or two of a change in the wholesale oil price. Filling up mid-week and avoiding a near-empty tank on a motorway trip are the two simplest ways to keep costs down.

Compare Sarn against the rest of the country on the cheapest petrol in the UK and cheapest diesel in the UK leaderboards.

All filling stations in Sarn

Looking elsewhere? See all areas covered by PumpScan UK. Area slug: /petrol-prices/sarn