Don't get pumped.
As of 29 August 2026, the cheapest LPG/Autogas in Western Australia is 140.9c per litre at Shell, Forrestfield — versus the Western Australia average of 162.4c (55.2c above the national average of 107.2c). Across 37 stations, LPG/Autogas ranges from 140.9c to 239.9c, so filling a 50-litre tank at the cheapest station saves about $10.75 over the state average.
Compare LPG/Autogas across 37 stations in Western Australia. Updated 11:12 AM, 29 Aug 2026.
| Brand | Avg Price | Stations |
|---|---|---|
| Caltex | 149.4c | 5 |
| United | 159.5c | 11 |
| Better Choice | 167.5c | 4 |
| BP | 169.8c | 8 |
| Independent | 176.6c | 3 |
The cheapest LPG/Autogas price in Western Australia right now is 140.9c per litre, across 37 stations tracked. The cheapest suburb right now is Sawyers Valley at a 144.9c average across 2 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 162.4c saves $10.75. See the live cheapest-stations list on this page for the exact station, address and suburb. Prices update twice daily from the official state government feed, so the cheapest station can change between the morning and afternoon updates — check again before you drive.
The current Western Australia average for LPG/Autogas is 162.4c per litre — 55.2c above the national average of 107.2c. Prices at individual stations range from 140.9c to 239.9c, a spread of 99.0c that shows how much shopping around can save. Petrolmate computes this average from every station reporting LPG/Autogas in Western Australia via the official government price feed, refreshed twice daily.
Caltex is currently the cheapest brand for LPG/Autogas in Western Australia at 149.4c per litre average across 5 stations. The gap between the cheapest brand (Caltex, 149.4c) and the priciest in our list (Independent, 176.6c) is 27.2c per litre — about $13.60 per 50-litre tank. Brand averages are recalculated twice daily from official price data, so the cheapest brand can change with the price cycle.