Diesel Prices in Western Australia Today: Average Price Per Litre

The short answer

What does diesel cost in Western Australia today?

277.5c a litre, and 45.6c more than petrol.That's the typical diesel price in Western Australia right now, across 650 sites with a price in the last 72 hours. Most pay between 259.8c and 295.9c. Diesel sits 45.6c a litre above ULP 91 (231.9c), 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 $32. Premium diesel runs 2.4c more in Western Australia — 279.9c against 277.5c, or $1.20 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 263.7c, against 285.9c at Shell Reddy Express — 22.2c a litre, or $11 a tank. A brand needs 25 priced diesel sites to appear.

Brand	Typical Diesel	Most pay between	vs all brands	Sites
1VibeNo points	263.7c	254.5–276.6c	−13.8c	49
2United PetroleumNo points	269.5c	256.8–282.4c	−8.0c	32
3Independent / unbrandedNo points	275.9c	257.9–298.9c	−1.6c	161
4LibertyNo points	276.3c	257.5–295.7c	−1.2c	46
5BPQantas, 1 pt/L	276.9c	269.2–299.4c	−0.6c	125
6ShellNo points	277.9c	265.7–294.3c	+0.4c	37
7AmpolEveryday Rewards, 1 pt/$	282.8c	271.3–309.2c	+5.3c	65
8Shell Reddy ExpressFlybuys, 0.5 pt/$	285.9c	277.9–291.9c	+8.4c	82

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. 40 prices discarded this build. Prices as at 2 November 2026, 9:15am.

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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 277.5c a litre, with most sites between 259.8c and 295.9c, across 650 sites priced in the last 72 hours as at 2 November 2026, 9:15am.

Why is diesel more expensive than petrol?

Diesel is 45.6c 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 2.4c a litre more than standard here — 279.9c against 277.5c. 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 263.7c, then United Petroleum at 269.5c. 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.

Diesel prices in Western Australia today

What does diesel cost in Western Australia today?

Which brand has the cheapest diesel in Western Australia?

Asked and answered