Economists have predicted another petrol price hike of around 30 cents per litre.
This follows a hefty hike of 93 cents for petrol and 69 cents for diesel earlier this month.
Efficient Group chief economist Dawie Roodt says the predicted hike is due to the weakness of the rand and the rise in international oil prices.
He said the “lag effect” after a weaker currency could see the price of petrol being increased.
Roodt says this should be the last hike for the 2012 year.