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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: 152.9p — save up to 0.0p/litre

Cheapest Diesel in South Marston

Area average: 169.9p — save up to 2.0p/litre

Worth the Drive?

Diesel averages 4.2p less in Haydon Wick (165.7p vs 169.9p here). The round trip is about 5 miles each way, costing roughly £1.48 in fuel at 50 mpg. A 60‑litre fill would save £2.52 — a net saving of £1.04 after the return journey.

There are 2 fuel stations in South Marston reporting live prices via the UK government's Fuel Finder service. Unleaded petrol (E10) averages 152.9p per litre across 2 stations. Diesel (B7) averages 169.9p across 2 stations. Unleaded is 0.2p below the national average of 153.1p.

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 152.9p Cheapest 164.9p Cheapest 167.9p Cheapest
Shell South Marston, Stratton St Margaret South Marston SN3 4RS 152.9p 172.9p 171.9p 191.9p Cheapest

Station Map

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

Unleaded (E10)
152.9p
2 stations
0.2p below national
Super Unleaded (E5)
168.9p
2 stations
±4.0p std dev
2.6p below national
Diesel (B7)
169.9p
2 stations
±2.0p std dev
1.2p below national
Premium Diesel
191.9p
1 stations
+0.1p vs 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 £2383/year on fuel in South Marston (at 152.9p/L). That's £3 less than the UK average of £2386. Across the wider Swindon (SN) postcode area petrol averages 153.9p/L, working out at £2399/year.

A diesel driver doing the same 12000 miles at 50 mpg spends about £1854/year at South Marston's average diesel price of 169.9p/L. That's £13 less than the UK average of £1867. Across the wider Swindon (SN) postcode area diesel averages 174.0p/L — £1898/year.

Choose the right station — save £££

For diesel the spread is 4.0p/L (167.9p cheapest, 171.9p 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 152.9p/L. Diesel is 167.9p/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 152.9p 167.9p

Shell South Marston Fuel Prices in South Marston

There is 1 Shell South Marston forecourt in South Marston. Petrol is 152.9p/L. Diesel is 171.9p/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 152.9p 171.9p

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Frequently Asked Questions

The cheapest unleaded petrol (E10) in South Marston today is 152.9p per litre at SAINSBURY'S, SN3 4EW. The average across 2 stations is 152.9p. 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 167.9p per litre at SAINSBURY'S, SN3 4EW. The average across 2 stations is 169.9p. Prices are sourced from the UK government's Fuel Finder service.

The average unleaded (E10) price in South Marston is 152.9p per litre from 2 stations. The national average is 153.1p, so South Marston is 0.2p below the national average.

The average diesel (B7) price in South Marston is 169.9p per litre from 2 stations. The national average is 171.1p, so South Marston is 1.2p 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.