Diesel prices in Portstewart

Compare current diesel (B7) across 2 Portstewart forecourts. Check the lowest listed price, local average and map before choosing where to fill up.

Lowest listed diesel forecourt in Portstewart

189.9p/l

Lowest listed diesel price in Portstewart

SSupervalu Portstewart0.5 mi from Portstewart centre

Directions Station details

Diesel local average: 190.4p/l
Local forecourts: 2
UK comparison: Below

Prices checked 20 Oct 2026, 06:50

Live local prices

Current diesel prices in Portstewart

2 current diesel (B7) prices from 2 Portstewart forecourts listed as stocking diesel.

Prices checked 20 Oct 2026, 06:50. Individual rows show when that forecourt price was reported.

Current diesel prices in Portstewart. Ranked by Diesel (B7) price.
Forecourt	Postcode and report	Diesel(B7), selected ranking	Distancefrom Portstewart centre	Opening times	Actions
1SSupervalu PortstewartSuperValu	BT55 7PUReported 5 Oct 2026, 12:05	189.9pCheapest	Distance: 0.5 mi	06:00 - 23:00 dailyMonday - Sunday: 06:00 - 23:00; Bank holidays: 07:00 - 23:00	Details
2SSpar Larkhill Service StationSPAR	BT55 7HUReported 12 Oct 2026, 13:18	190.9p	Distance: 0.5 mi	07:00 - 23:00 dailyMonday - Sunday: 07:00 - 23:00; Bank holidays: 07:00 - 23:00	Details

How to read this page

About diesel prices in Portstewart

Coverage, freshness and comparison scope matter as much as the headline price.

Portstewart has 2 forecourts listed as stocking diesel (B7), with current prices available from 2. The table ranks forecourts by current diesel (B7) price, with distance and station name used to order equal or unavailable prices. Station status, distance and update freshness remain visible for comparison.

This page focuses on Diesel (B7) using official UK Fuel Finder data, local averages, regional benchmarks and UK average comparisons where coverage is available.

Thirty-day evidence

Thirty-day diesel (B7) price trend

Thirty-day diesel (B7) trends, local comparisons and potential savings from official UK Fuel Finder data.

201p195p188p

Average price

190.4p/l

20 Sept to 19 Oct

30-day low: 189.9p/l
30-day high: 195.9p/l
Movement (30 days): +0.5p/l
Volatility: Moderate

Jerry's diesel trend read

Diesel in Portstewart rose 0.5p/l, from 189.9p/l on 20 September to 190.4p/l on 19 October. The rise was not continuous: prices fell 4.5p/l from 4 October to 12 October before moving higher again. Portstewart's current average is 8.7p/l below the UK average. Daily movement volatility is moderate.

Consistency, not just today's lowest

A consistently competitive diesel forecourt

This recommendation requires at least 21 completed reporting days and a current price no higher than the local average.

Supervalu Portstewart

189.9p/l today

0.5p/l below Portstewart average today

Near cheapest: Within 1p on 29 of 30 days
Daily cheapest: Cheapest on 27 of 30 days
Average gap: 0.1p/l average gap
Evidence: 30 of 30 days reported

Directions Station details

Supervalu Portstewart stayed within 1p/l of the daily cheapest diesel price on 29 of 30 reported days, averaging 0.1p/l above the daily cheapest price.

Price choice

Potential diesel savings

Cheapest versus average is the practical comparison. Cheapest versus highest is the maximum listed difference, not a guaranteed saving.

Current local price range

1p/l

189.9p/l cheapest, 190.9p/l highest

Cheapest versus local average: £0.28 less than the local average on a 55-litre fill
Cheapest versus highest: £0.55 maximum listed difference on a 55-litre fill

Comparing current diesel prices in Portstewart can avoid paying up to 1p/l more than the cheapest listed price.

Diesel (B7) compared with nearby locations

Ranked by current average diesel price. Portstewart is highlighted so the local baseline remains easy to find.

Limavady has the lowest nearby average shown at 189.6p; it is 0.8p/l cheaper than Portstewart.

Local market evidence

Diesel market in this location

Distribution, station consistency and forecourt type provide different evidence. None is treated as a guarantee of the next pump price.

Price distribution

189.9p to 190.4p1 station

190.4p to 190.9p1 station

The largest group of reporting diesel forecourts in Portstewart sits in the 189.9p to 190.4p range.

Cheapest station consistency

Supermarkets and other forecourts

Supermarkets: No price
Major brands: No price
Independent forecourts: 190.4p/l

Named local evidence: Independent forecourts.

Where value persists

Diesel brand reliability over 30 days

Historical claims render only when the documented reporting thresholds are met.

No brand has at least two Portstewart forecourts and 21 days of diesel evidence for a reliable 30-day comparison.

Areas with the cheapest diesel in Portstewart

There is not enough mapped local-area coverage for current diesel (B7) forecourts in Portstewart.

Good to know

Fuel price FAQs for Portstewart

Use the current local evidence to choose a forecourt, compare nearby places and understand how coverage and freshness affect the figures.

Where is the cheapest diesel (B7) in Portstewart today?

The cheapest listed diesel (B7) price in Portstewart is 189.9p/l at Supervalu Portstewart. Check the table before travelling because distance, opening status and recent updates can affect the best choice.

How are Portstewart diesel (B7) forecourts ranked?

Forecourts are ranked by their current diesel (B7) price first. If prices are tied or unavailable, the table uses distance and station name. Use the forecourt comparison to sort and inspect the current results.

Are diesel (B7) prices in Portstewart below the UK average?

Diesel is below the UK average by 8.7p/l. These comparisons use current location averages and the latest benchmark data available to the page.

How recent are the Portstewart fuel prices on this page?

Prices checked 20 Oct 2026, 06:50. Individual prices can remain unchanged between checks until a retailer reports a price change.

Why do some Portstewart forecourts not show a current diesel (B7) price?

A forecourt can be listed when it is known to stock diesel (B7), even if there is not a current reported price available for that fuel. The price table keeps those stations visible but prioritises forecourts with current prices.

Should I compare nearby locations before filling up in Portstewart?

Nearby comparisons currently show Coleraine at 190.8p/l, 0.4p/l more expensive than Portstewart, Bushmills at 191.9p/l, 1.5p/l more expensive than Portstewart and Ballymoney at 192.1p/l, 1.7p/l more expensive than Portstewart. Compare Portrush, Coleraine, Bushmills and Ballymoney.

How can I compare fuel prices around my current location?

Use cheapest diesel near me for a distance-led comparison based on your current position.

Built on real fuel-price data

Prices are sourced from the UK Government Fuel Finder scheme. Prices checked 20 Oct 2026, 06:50. See how we qualify and compare prices

Retailer reporting target: 30 minutes