Local price scan
Cheapest petrol and diesel prices in Cornwall
2 tracked forecourts in Cornwall, last updated 30 September 2026. Prices are pence per litre.
Unleaded petrol (E10)
172.9p
cheapest · 172.9p average across 2 stations
Diesel (B7)
197.9p
cheapest · 198.9p average across 2 stations
Super unleaded (E5)
184.9p
cheapest · 189.4p average across 2 stations
Premium diesel
220.9p
cheapest · 220.9p average across 1 station
Cornwall price history
Daily average standard petrol and diesel prices across tracked local stations over the last 90 days.
Cornwall stations ranked by price
| SAINSBURYS PENZANCESAINSBURYS · TR18 3AP | 172.9p | 197.9p | 184.9p | — |
|---|---|---|---|---|
| TGC - LOOETEXACO · PL13 1HN | 172.9p | 199.9p | 193.9p | 220.9p |
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Where these stations are
What drivers in Cornwall should know
The gap between the cheapest and most expensive forecourt in Cornwall is currently 0.0p per litre. On a typical 55-litre fill that is about £0.00 — worth a short detour if a cheaper site is already on your route.
At 172.9p the average unleaded petrol (e10) price in Cornwall is below the UK-wide average of 174.7p that PumpScan is tracking, a difference of 1.8p per litre.
Brands represented locally include SAINSBURYS, TEXACO. Supermarket forecourts usually undercut motorway services by a wide margin, and prices in and around Cornwall 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 Cornwall against the rest of the country on the cheapest petrol in the UK and cheapest diesel in the UK leaderboards.
All filling stations in Cornwall
- SAINSBURYS PENZANCEEASTERN GREEN, PENZANCE, CORNWALL
- TGC - LOOESTATION ROAD, LOOE, CORNWALL, CORNWALL
Looking elsewhere? See all areas covered by PumpScan UK. Area slug: /petrol-prices/cornwall