Diesel prices › Western Australia

Diesel prices in Western Australia today

The typical diesel price in Western Australia is 276.9c a litre, 47.0c more than petrol, across 649 sites priced in the last 72 hours.

276.9c
typical diesel
+47.0c
vs ULP 91
$23
more per 50L fill
649
sites priced
The short answer

What does diesel cost in Western Australia today?

276.9c a litre, and 47.0c more than petrol.That's the typical diesel price in Western Australia right now, across 649 sites with a price in the last 72 hours. Most pay between 257.5c and 295c. Diesel sits 47.0c a litre above ULP 91 (229.9c), which is $23 more on a 50L fill — worth knowing if you still think of diesel as the cheaper fuel. On a 70L ute tank it's $33. Premium diesel runs 3.0c more in Western Australia — 279.9c against 276.9c, or $1.50 on a 50L fill. Whether the additives earn that back is a question for your engine, not your wallet.

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By brand

Which brand has the cheapest diesel in Western Australia?

Vibe at 261.2c, against 283.9c at Shell Reddy Express — 22.7c a litre, or $11 a tank. A brand needs 25 priced diesel sites to appear.
BrandTypical
Diesel		Most pay
between		 vs all
brands		Sites
1VibeNo points261.2c253.1–275.9c−15.7c48
2United PetroleumNo points266.9c254.5–279.5c−10.0c31
3LibertyNo points274.7c258.5–295.7c−2.2c46
4Independent / unbrandedNo points275.9c255.4–299c−1.0c162
5ShellNo points275.9c265.5–294.3c−1.0c37
6BPQantas, 1 pt/L276.9c269.9–297.5clevel124
7AmpolEveryday Rewards, 1 pt/$282.3c271.4–307.8c+5.4c66
8Shell Reddy ExpressFlybuys, 0.5 pt/$283.9c273.9–287.9c+7.0c82
How these numbers are worked out. Every figure is the median price across every priced diesel site in Western Australia, and every range is the 10th to 90th percentile — not the cheapest and dearest pump, so a single mistyped price can't move what you read here. Prices come from the state government fuel feeds (FuelCheck NSW, FuelPricesQLD, FuelWatch WA, Fair Fuel VIC, SA) and only count if they were updated in the last 72 hours. A price is discarded if it sits more than 30c below its own state and fuel-type median, which is how a feed's occasional nonsense figure gets caught; prices above the median are kept, because remote roadhouses genuinely charge far more. 44 prices discarded this build. Prices as at 27 October 2026, 9:15am.
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Keep going

Diesel across Australia · Diesel in New South Wales · Diesel in Victoria · Diesel in Queensland · Diesel in South Australia · Diesel in Tasmania · The cheapest fuel brand · Fuel prices near you · Petrol price cycles

Common questions

Asked and answered

What is the average diesel price in Western Australia?

The typical (median) diesel price is 276.9c a litre, with most sites between 257.5c and 295c, across 649 sites priced in the last 72 hours as at 27 October 2026, 9:15am.

Why is diesel more expensive than petrol?

Diesel is 47.0c a litre above ULP 91 in Western Australia right now — $23 on a 50L fill. Australian diesel is largely imported and carries a different excise and refining path from petrol, and demand is driven by freight rather than cars, so the two prices move on different cycles. What this page can tell you is the size of the gap today, not what it will be next month.

Is premium diesel worth it?

Premium diesel is 3.0c a litre more than standard here — 279.9c against 276.9c. Whether the detergent additives are worth it depends on your engine and how you drive; the price difference, at least, is small.

Which servo has the cheapest diesel in Western Australia?

Vibe has the lowest typical diesel at 261.2c, then United Petroleum at 266.9c. The spread within any one brand is usually wider than the gap between brands, so check the sites near you rather than driving to a sign.