However, prices are now creeping back up.
NRMA spokesperson Peter Khoury said increasing petrol prices reflected the ongoing volatility in wholesale oil prices.
He said oil prices jumped again last week, but prices had since stabilised.
Fuel prices at the pump in Melbourne had already spiked, Khoury said, with prices sitting at $1.89 a litre.
Sydney had increased around 6-7 cents in the past few days, with fuel prices sitting around $1.67 a litre.
Brisbane was around $1.78 a litre, on average, and Adelaide around $1.84 a litre.
“So, I guess the point is, prices are gonna go back up but not as high as the record highs that we saw.”
His final price prediction? In the next price cycle for the cities that have them, he expects unleaded prices to peak in the “high $1.80s” a litre.
Get in before the peak
Compare the Market fuel expert Sarah Orr said it would be a few days before prices peaked.
“So yes, if you're looking at your tank and wondering, ‘Do I fill up?’ Then yes, now is the time before we peak.”
She expected fuel prices to max out around $1.91 a litre in most places.
In Sydney, Orr said there was currently an 80-cent difference between the cheapest and most expensive fuel on the market.
In Brisbane, there was a 42-cent difference between the best deal and the worst.
“That's a saving of $21 to fill a 50-litre tank,” Orr said.
Why fuel is getting expensive again
Orr said there was still a lot of volatility in oil markets, with big jumps in oil prices last week followed by a tumble in crude oil prices overnight.
“Expect to see, unfortunately, some high prices while this uncertainty remains,” she said.