Mark Borlace at the Royal Automobile Association said while “the dollar deals are good”, there was a catch.
“But they’re obviously just a marketing ploy, a lot of times they just create traffic hazard,” Mr Borlace said.
The deal at both petrol stations have since ended.
In other big cities around the country, petrol prices have already been on the rise.
Last month the average price for regular unleaded petrol reached 170 cents per litre, while in Melbourne it was 174.7 cents.
Experts said the reason for rising petrol prices was the cost of crude oil and that as the world emerges from the COVID-19 pandemic, economies place large demands on natural resources.
An Adelaide driver who lined up for the cheap petrol deal said prices had been “extortionate”.
Motorists are advised to keep monitoring real-time fuel apps to avoid any price gauging.