Petrol prices vary significantly by state and follow regular price cycles. See how your state compares.
Prices shown are weekly averages across all stations and regions. Capital city prices at cycle peaks are typically 40–80 cents per litre higher than this average.
Prices at record highs in late March 2026 due to Middle East tensions and global crude oil above US$90/barrel. Capital city cycle peaks reaching 300+ c/L for petrol.
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Petrol vs diesel price trend 2019–2026
Petrol prices in Sydney, Melbourne, Brisbane and Adelaide follow a regular 4–6 week cycle. Prices at the cycle low can be 40–80 cents per litre cheaper than the peak. The current spike above $2.40 in capital cities reflects a cycle peak combined with global oil market pressure from Middle East tensions.
Diesel National Avg
303.5c/L
Diesel Premium
+55.5c/L
Around 30% of Australian passenger vehicles run on diesel. Diesel does not follow a price cycle — prices move more gradually than petrol. Current diesel prices reflect the late March 2026 global oil spike.