WA Fuel Prices – Week of 13 April 2026

WA drivers caught a solid break this week. Metro U91 dropped 16c to land at 204.4 c/L, making Western Australia the cheapest state in the country right now. That's not a one-off either — this is the second consecutive week of falling prices, and the trend held across every fuel type on offer.

WA Petrol Prices This Week: Metro vs Rural Snapshot

Rural drivers are also seeing relief, though the falls are a little softer. If you're filling up outside the metro area, you're still paying 15c more per litre for U91 than city drivers — on a 60-litre tank, that's roughly $9 more every time you visit the servo.

Biggest Fuel Price Movers in WA This Week

Every fuel type posted double-digit falls this week, which isn't something that happens all that often. P95 and P98 led the charge, each dropping 16.6c in metro areas.

Diesel was close behind, falling 16.4c metro to 299.5 c/L. Rural diesel only dropped 9.2c by comparison, which is a meaningful difference if you're a tradie or truck driver running routes outside Perth. The metro diesel premium over U91 sits at a hefty 95.1c per litre — something to factor in if you're choosing between vehicles.

Looking at the daily data for U91, the week started firm at 210.4c on Monday the 13th, then eased steadily before dropping more sharply from Thursday onwards. By Sunday the 19th, metro prices had slid to 195.8c — the lowest point of the week.

WA Metro Petrol Price Range and Brand Comparison

There's a striking gap between the cheapest and priciest stations in metro Perth this week. Costco Casuarina was averaging 178.7 c/L for U91, while the most expensive metro station hit 250 c/L. That's a 71.3c spread — on a 60-litre tank, the difference between those two stations is over $42. It absolutely pays to check before you fill up.

Among brands with meaningful coverage, Burk averaged 191.6c across 9 stations, Atlas came in at 193.7c across 13 stations, and Vibe sat at 195.2c across 33 stations. At the other end, Caltex averaged 212.6c across 60 stations, and Independents averaged 226.8c. That's a 35c gap between the cheapest and priciest brands — the brand you choose genuinely matters.

Cheapest Day to Fill Up in WA Last Week

Last Sunday (19 April) was the cheapest day to fill up in metro Perth, with U91 averaging 195.8 c/L. Prices had been falling consistently since Thursday, so anyone who held off through the weekend was rewarded.

WA Metro Petrol Price Forecast: Next 3 Days

The short-term metro outlook suggests a slight bounce is coming. Monday the 20th is forecast at 196.2 c/L (77% confidence), Tuesday the 21st at 199.5 c/L (69% confidence), and Wednesday the 22nd at 204.1 c/L (61% confidence). All three days sit below the current metro weekly average of 204.4 c/L, so if you haven't filled up yet, the next couple of days look favourable.

On a national level, WA's metro U91 average of 204.4 c/L sits 5.6c below the national metro average of 210 c/L, and well clear of Victoria's 214.2 c/L at the top of the table.

How to Save on Fuel in WA Right Now

The 30-day metro U91 range runs from 178.7c to 269c, and the current average of 204.4c is sitting comfortably in the lower half of that range. You're not at rock bottom, but you're not being gouged either. The forecast suggests prices tick up mid-week, so Monday or Tuesday morning looks like the smart window to fill up if you can manage it. And with a 71c spread between the cheapest and priciest metro stations, using a price comparison tool before you leave home is the single easiest way to shave dollars off your weekly fuel spend.

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