Brisbane service stations are making 27¢ per litre in profit as the latest fuel price spike sweeps across the region, according to RACQ.

Retailers have put prices up to almost $1.54/litre for regular unleaded as the peak of the cycle arrives once again, but the latest price increase is 13¢ higher compared to the past few months.

Fill up quickly before more than $1.50 per litre becomes the norm in the south-east, RACQ advises. Credit:Patrick Cummins

RACQ spokeswoman Lucinda Ross said prices had jumped since the start of the week, with almost 30 per cent of Brisbane service stations selling at 153.9¢/litre by Thursday.

"It is really shocking. We are seeing those service stations hiking 13¢ per litre higher than they did the last time prices hiked just a month, so that is disappointing," she said.