Petrol prices in SO18
Every forecourt in the SO18, Southampton postcode district, cheapest first, with live prices from the government Fuel Finder feed — covering Southampton, South East.
Petrol stations in SO18 (3)
Cheapest first. Prices update through the day.
BP, SOUTHAMPTONCheapestSOUTHAMPTON£1.69E10£1.93B7ESSO, SOUTHAMPTONSOUTHAMPTON£1.70E10£1.94B7ESSO, SOUTHAMPTONSOUTHAMPTON£1.71E10£1.92B72.0p separates the cheapest and dearest forecourt inside SO18 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.
SO15Southampton6.1 km away · 7.6 mile round trip · 4 forecourts£1.63saves 3.7p a litreSO50Southampton5.5 km away · 6.8 mile round trip · 6 forecourts£1.66saves 0.9p 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 SO18
SO18 is part of the SO postcode area, which covers Southampton, and its forecourts sit mainly in Southampton in South East. We track 3 forecourts here across 2 brands.
There is no supermarket forecourt in SO18, 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 East as a whole the median is £1.73 — 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 SO18
How much is petrol in SO18 today?
The typical SO18 forecourt is charging £1.70 a litre for E10 petrol — £93.44 for a 55-litre tank. The cheapest of the 3 forecourts reporting a price in SO18 is at £1.69, and the dearest £1.71.
Where is the cheapest petrol in SO18?
BP, SOUTHAMPTON in SOUTHAMPTON at £1.69 a litre. That is 2.0p below the dearest forecourt in SO18. Prices change through the day, so check before you set off.
Is SO18 cheaper or dearer than the rest of the UK?
SO18 runs 1.0p below the UK median of £1.71, and sits in South East, where the regional median is £1.73. 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 SO18?
Right now, yes — SO15 has fuel at £1.63, and even after the 12.2 km round trip burns its own fuel, you are about 3.7p a litre better off. That is roughly £2.05 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 SO18?
3 forecourts, from 2 different brands. Every one reports its prices to the government Fuel Finder scheme within thirty minutes of a change.