Fuel Prices Ireland – Week of 20 March 2026

If you’ve been keeping an eye on the pumps, the latest fuel prices Ireland figures are finally in for the week of 20 March 2026. Whether you’re a commuter, a delivery driver, or just heading out for a weekend road trip, the numbers this week give a clear picture of where you can stretch your euro further. Below we break down the national averages, highlight the cheapest diesel Ireland stations, and share a few handy tips to help you save at the pump.

National Average Prices

Diesel: €179.10 per 100 litres
Unleaded (petrol): €171.87 per 100 litres

These figures come from a network of 1,567 stations across the island, giving a comprehensive snapshot of the market. Compared with the same period last year, diesel has nudged a little higher while unleaded has held relatively steady. If you’re budgeting for a long‑haul or simply want to know whether it makes sense to fill up now, these averages are your baseline.

The Cheapest 5 Stations Right Now

If you’re hunting for the cheapest diesel Ireland has to offer, these five locations are leading the pack:

Station	County	Diesel	Unleaded
Top Oil Stradbally Service Station	Co. Laois	€111.11	€111.11
Go Petrol Station	Co. Antrim	€126.90	€122.90
Go	Co. Down	€126.90	€122.90
BP	Co. Antrim	€127.90	€123.90
Go Petrol Station	Co. Tyrone	€129.90	Data not available

A quick note on the Tyrone listing – the unleaded price shows as €0.00, which is almost certainly a reporting glitch. Until the data is corrected, stick with the other stations on the list for reliable petrol prices today.

Cheapest Counties by Diesel Average

Beyond individual stations, some counties consistently beat the national average. Here’s a rundown of the ten cheapest counties for diesel, together with their average unleaded prices:

Co. Fermanagh – Diesel €80.13, Unleaded €79.48 (7 stations)
Co. Tyrone – Diesel €132.66, Unleaded €122.79 (10 stations)
Co. Down – Diesel €138.96, Unleaded €136.13 (31 stations)
Co. Derry – Diesel €145.37, Unleaded €144.43 (9 stations)
Co. Antrim – Diesel €146.03, Unleaded €141.36 (37 stations)
Co. Armagh – Diesel €150.37, Unleaded €147.89 (7 stations)
Co. Roscommon – Diesel €160.42, Unleaded €168.72 (28 stations)
Co. Cavan – Diesel €170.26, Unleaded €167.37 (39 stations)
Co. Monaghan – Diesel €170.61, Unleaded €173.99 (30 stations)
Co. Sligo – Diesel €170.69, Unleaded €155.72 (24 stations)

If you travel across borders, consider routing through Fermanagh or Tyrone for the best deals on diesel. Even a small detour can shave a few euros off a full‑tank purchase.

Practical Advice for Irish Drivers

Plan Your Fill‑Ups – Use the county averages above to target the cheapest zones. A short drive to a lower‑priced station can pay for itself quickly, especially for diesel‑heavy vehicles.
Check Real‑Time Prices – Prices fluctuate daily. Before you set off, head to FuelCompare.ie or open the FuelCompare app to see the most up‑to‑date figures.
Watch for Promotions – Some retailers (like Go or BP) run loyalty schemes or limited‑time discounts that aren’t reflected in the raw price data. Keeping an eye on their websites can net you extra savings.
Mind the Fuel Type – If your vehicle runs on diesel, the “cheapest diesel Ireland” listings are your go‑to. For petrol‑only drivers, the same sites provide petrol prices today alongside diesel.
Consider Fuel Quality – The cheapest pump isn’t always the best for engine health. Look for stations that advertise high‑quality additives; a small price premium may translate into longer engine life.

Stay Updated on the Fly

The fuel market moves fast, and what’s cheapest today might change tomorrow. The FuelCompare platform aggregates data from over a thousand pumps, delivering live updates straight to your phone. By setting price alerts, you’ll receive a push notification the moment a station in your chosen area drops below your preset threshold. It’s the easiest way to stay ahead of the curve without constantly checking the website.

Bottom Line

This week’s fuel prices Ireland data shows the national averages hovering around €179 for diesel and €172 for unleaded, but there’s still a healthy spread between the most expensive and the cheapest diesel Ireland can offer. Whether you’re cruising the Wild Atlantic Way or just getting to work in Dublin, a quick glance at the county averages and the top five stations can help you make smarter, cheaper choices.

Ready to never overpay at the pump again? Download the FuelCompare app today, set your price alerts, and start filling up at the best rates your route can find. Safe driving!