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Cheapest Petrol & Diesel in South Marston Today

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Last updated: · Prices refresh every 30 minutes from the UK government's Fuel Finder service.

Cheapest Petrol in South Marston

Area average: 155.4p — save up to 0.5p/litre

Cheapest Diesel in South Marston

Area average: 174.9p — save up to 2.0p/litre

There are 2 fuel stations in South Marston reporting live prices via the UK government's Fuel Finder service. Unleaded petrol (E10) averages 155.4p per litre across 2 stations. Diesel (B7) averages 174.9p across 2 stations. Unleaded is 0.4p below the national average of 155.8p.

Use our fuel station finder to find the most economical place to fill up near you, or calculate the fuel cost of a longer trip from South Marston.

Fuel Stations in South Marston

Station Postcode E10 E5 B7 SDV
Sainsbury's, Stratton St Margaret South Marston SN3 4EW Super-market 154.9p Cheapest 166.9p Cheapest 172.9p Cheapest
Shell South Marston, Stratton St Margaret South Marston SN3 4RS 155.9p 175.9p 176.9p 196.9p Cheapest

Station Map

Average Petrol and Diesel Prices in South Marston (pence per litre)

Unleaded (E10)
155.4p
2 stations
±0.5p std dev
0.4p below national
Super Unleaded (E5)
171.4p
2 stations
±4.5p std dev
2.9p below national
Diesel (B7)
174.9p
2 stations
±2.0p std dev
1.8p below national
Premium Diesel
196.9p
1 stations
1.0p below national

30-Day Price Trend in the Swindon Region (pence per litre)

Daily averages across all stations in the Swindon postcode area over the last 30 days. South Marston sits within this region.

What does fuel cost a typical driver in South Marston?

At current prices, a typical driver covering 12000 miles a year in a petrol car averaging 35 mpg spends about £2422/year on fuel in South Marston (at 155.4p/L). That's £6 less than the UK average of £2428. Across the wider Swindon (SN) postcode area petrol averages 156.6p/L, working out at £2441/year.

A diesel driver doing the same 12000 miles at 50 mpg spends about £1908/year at South Marston's average diesel price of 174.9p/L. That's £20 less than the UK average of £1928. Across the wider Swindon (SN) postcode area diesel averages 179.0p/L — £1953/year.

Choose the right station — save £££

The cheapest petrol in South Marston is 154.9p/L and the most expensive is 155.9p/L — a 1.0p/L spread. Filling a 60‑litre tank at the cheapest vs the dearest saves £0.60.

For diesel the spread is 4.0p/L (172.9p cheapest, 176.9p dearest) — £2.40 saved on a 60‑litre fill.

Fuel Prices by Brand in South Marston

Average prices and cheapest station for each fuel brand in South Marston.

Sainsbury's Fuel Prices in South Marston

There is 1 Sainsbury's forecourt in South Marston. Petrol is 154.9p/L0.5p below the South Marston average. Diesel is 172.9p/L (2.0p below town avg). Live prices: Sainsbury's, Stratton St Margaret. Sainsbury's fuel prices across the UK →

Show station details
StationPostcodeE10B7
Sainsbury's, Stratton St Margaret SN3 4EW 154.9p 172.9p

Shell South Marston Fuel Prices in South Marston

There is 1 Shell South Marston forecourt in South Marston. Petrol is 155.9p/L0.5p above the South Marston average. Diesel is 176.9p/L (2.0p above town avg). Live prices: Shell South Marston, Stratton St Margaret.

Show station details
StationPostcodeE10B7
Shell South Marston, Stratton St Margaret SN3 4RS 155.9p 176.9p

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Frequently Asked Questions

The cheapest unleaded petrol (E10) in South Marston today is 154.9p per litre at SAINSBURY'S, SN3 4EW. The average across 2 stations is 155.4p. Prices are sourced from the UK government's Fuel Finder service and updated every 30 minutes.

The cheapest diesel (B7) in South Marston today is 172.9p per litre at SAINSBURY'S, SN3 4EW. The average across 2 stations is 174.9p. Prices are sourced from the UK government's Fuel Finder service.

The average unleaded (E10) price in South Marston is 155.4p per litre from 2 stations. The national average is 155.8p, so South Marston is 0.4p below the national average.

The average diesel (B7) price in South Marston is 174.9p per litre from 2 stations. The national average is 176.7p, so South Marston is 1.8p below the national average.

There are currently 2 fuel stations reporting prices in South Marston. This includes supermarket forecourts, independent stations, and branded sites.

Fuel prices on MPG Calc are updated every 30 minutes using official data from the UK government's Fuel Finder service. All retailers with 250+ filling stations are required by law to report their prices, covering the vast majority of UK forecourts.