WARWICK motorists benefited from the cheapest unleaded petrol prices in Queensland last month, paying four cents a litre less than their Brisbane counterparts.

A spokesman for the United Service Station on Wallace St said he knew changing prices was painful for everyone.

"It's great we can keep our prices low for the locals," he said.

"We try to do our best to compete with other fuel providers but, on a whole, the more competitive we all are the better for the community."

RACQ executive manager public policy Michael Roth said the club's latest monthly fuel price report revealed that while Warwick sold the cheapest ULP in the state, its monthly average price of 150.4 cents a litre was 9.8c higher than in June.

"Warwick motorists paid the least in the state for ULP last month, but they were not immune to the effects of rising oil prices and the weaker Australian dollar, which reached a three-year low by the end of the month," Mr Roth said.

"Motorists across the state have been hit with higher fuel prices, with Brisbane, Ipswich, Cloncurry, Mt Isa and Cairns all setting new monthly average price records."

Having temporarily regained its title as the cheapest Queensland centre for ULP in June, Toowoomba was ranked second cheapest in July, averaging 150.7c a litre, only 0.3c more than Warwick and 3.7c less than Brisbane.

The Gold Coast, Sunshine Coast, Blackwater, Bundaberg, Emerald, Goondiwindi, Ingham, Ipswich, Townsville and Yeppoon were the other centres to sell cheaper ULP than Brisbane.

Mr Roth said while motorists could not avoid paying higher prices for ULP, they could shop around for the best prices on offer.

"Before filling up, check out our new Fair Fuel Price service at http://www.racq.com.au, which tells you what price you should be paying in your local area each day," he said.