Petrol prices in PL18
Every forecourt in the PL18, Plymouth postcode district, cheapest first, with live prices from the government Fuel Finder feed — covering Cornwall, South West.
PL18 has only 2 forecourts, so there is no comparison to make within the district itself. The PL area page covers the surrounding districts, which is where a cheaper option would be.
Petrol stations in PL18 (2)
Cheapest first. Prices update through the day.
GULF, GUNNISLAKECheapestGUNNISLAKE£1.70E10£1.94B7ASDA EXPRESS, GUNNISLAKEGUNNISLAKE£1.72E10£1.94B72.0p separates the cheapest and dearest forecourt inside PL18 alone — £1.10 on a tank, without leaving the district. That is usually a bigger saving than any amount of waiting for prices to move.
Is anywhere nearby cheaper?
Neighbouring districts, with the fuel the drive itself burns already subtracted — a 45 mpg car, there and back.
PL5Plymouth13.3 km away · 16.5 mile round trip · 3 forecourts£1.59saves 6.0p a litrePL20Plymouth7.5 km away · 9.3 mile round trip · 2 forecourts£1.63saves 4.0p a litrePL19Plymouth6.2 km away · 7.7 mile round trip · 3 forecourts£1.67saves 0.4p a litreThe saving shown is what is left after the detour: the pump price plus the extra fuel burned getting there and back, spread across a 55-litre fill. A forecourt that is 4p cheaper eight miles away is not 4p cheaper. The arithmetic is here.
Nearby postcode districts
Closest first, with today’s typical price.
About fuel prices in PL18
PL18 is part of the PL postcode area, which covers Plymouth, and its forecourts sit mainly in Cornwall in South West. We track 2 forecourts here across 2 brands.
There is no supermarket forecourt in PL18, which usually shows in the price: supermarket sites anchor local competition, and districts without one tend to run dearer than neighbours that have one. Across South West as a whole the median is £1.70 — see the whole region.
Every price here comes from the government Fuel Finder scheme, which since February 2026 has required each forecourt to report a change within thirty minutes. For the forecourts nearest a specific address rather than a whole district, search your full postcode.
Common questions about PL18
How much is petrol in PL18 today?
The typical PL18 forecourt is charging £1.71 a litre for E10 petrol — £93.89 for a 55-litre tank. The cheapest of the 2 forecourts reporting a price in PL18 is at £1.70, and the dearest £1.72.
Where is the cheapest petrol in PL18?
GULF, GUNNISLAKE in GUNNISLAKE at £1.70 a litre. That is 2.0p below the dearest forecourt in PL18. Prices change through the day, so check before you set off.
Is PL18 cheaper or dearer than the rest of the UK?
PL18 runs 0.8p above the UK median of £1.70, and sits in South West, where the regional median is £1.70. Local competition drives most of that: districts with two or more supermarket forecourts close together price lower than districts where the nearest alternative is a drive away.
Is it worth driving to a cheaper postcode from PL18?
Right now, yes — PL5 has fuel at £1.59, and even after the 26.6 km round trip burns its own fuel, you are about 6.0p a litre better off. That is roughly £3.29 on a tank. Anything closer than that is not worth a special journey, though it may be worth routing past.
How many petrol stations are there in PL18?
2 forecourts, from 2 different brands. Every one reports its prices to the government Fuel Finder scheme within thirty minutes of a change.