The Automobile Association of South Africa says the price of petrol is set to go up next month while the price of diesel is expected to come down.
The AA was commenting on Tuesday on unaudited month-end fuel price data released by the Central Energy Fund.
The Association says the current picture shows the price of petrol could increase by around eight cents a litre, while diesel is set to drop by three cents and illuminating paraffin by nine cents.
The AA says the difference in the price changes relates mainly to the differences in the international product prices of diesel and petrol.
The Association says international oil prices have reached a slightly higher plateau, after climbing in the first half of January, while at the same time the Rand firmed gradually against the US dollar.
Earlier this month the AA predicted a possible 12 cents drop in the price of fuel as well as a further drop of 36 cents for diesel.
The Department of Energy is expected to make an announcement soon.