ACT Fuel Prices – Week of 11 May 2026

Diesel is the big story in the ACT this week, shedding 5.7 cents to settle at 257.2 c/L metro. That's a meaningful drop if you drive a diesel vehicle, and it brings some relief after a week that started above 258 cents.

ACT Weekly Fuel Price Snapshot: 11–18 May 2026

Rural data is not available for the ACT this week.

ACT Diesel and Petrol Price Movements This Week

Diesel had an interesting week. It opened at 258.7c/L on Monday, eased steadily through to a mid-week low of 255.7c/L on Wednesday, then crept back up to sit at 257.2c/L by Sunday. So the weekly average improvement of 5.7 cents is real, but drivers who filled up mid-week got the best of it.

U91 told a different, quieter story. Prices dipped from 183.3c/L on Monday down to a flat 182.4c/L across Wednesday and Thursday, before nudging back up to 183.4c/L by Saturday. The weekly change is a modest +0.3c, so there's no real pressure on everyday petrol buyers, but the rhythm is worth watching.

P95 edged fractionally lower by 0.6c to 201.4c/L. If you're running a premium-thirsty car, that's a small but welcome move in the right direction.

Cheapest Petrol Stations and Brand Averages in the ACT

There's a striking gap between the cheapest and most expensive metro stations this week. The lowest price recorded is 172.7c/L at Costco Canberra Airport, though that's a members-only price. The most expensive metro station sits at 199.9c/L, which is a spread of over 27 cents on the same grade of fuel.

Brand averages tell a similar tale. Metro Fuel is the standout cheap option, averaging 179.1c/L across 8 stations. United comes in at 181.7c/L and BP at 182.6c/L. At the pricier end, Ampol Foodary averages 184.6c/L and 7-Eleven 183.2c/L. That's a 5.5-cent gap between Metro Fuel and Ampol Foodary, which adds up quickly if you're filling a 50-litre tank.

Best Day to Fill Up Last Week

Last Wednesday (13 May) was the cheapest day to fill up in the ACT, with metro U91 dropping to 182.4c/L. If you missed that window, you paid a little more towards the weekend when prices ticked back up.

ACT Metro Petrol Price Forecast: Next Three Days

The short-term outlook for metro U91 is mildly encouraging. Prices are forecast to ease from today's 182.9c/L down to 182.4c/L tomorrow, 181.3c/L on Tuesday, and 180.1c/L by Wednesday, though confidence drops to 65% by that final day. If accurate, that's a saving of nearly 3 cents per litre compared to right now.

How to Save on Fuel in the ACT This Week

Against a national metro U91 average of 182c/L, the ACT's 182.9c/L sits just 0.9 cents above the national figure, which is a fairly comfortable position.

The actionable takeaway is straightforward: brand choice matters more than timing this week. Choosing Metro Fuel or United over Ampol Foodary or 7-Eleven could save you around 5 cents per litre without any extra driving. On a 50-litre fill, that's roughly $2.50 back in your pocket.

If you drive diesel, this week's dip is a genuine opportunity worth acting on before prices recover.

Download Petrol Smart for live prices on the map, route planning, and price alerts. It's free and has no ads, so you'll always know where the cheapest fuel near you is before you leave home.