The Automobile Association of South Africa says fuel prices will hit record highs in May.
The AA says a substantial weakening of the Rand against the US dollar has combined with sharp increases in international oil prices to produce a new record-high fuel price of over R15 a litre.
The previous highest price for fuel was in December last year when petrol cost R14.76 a litre.
Commenting on unaudited month-end fuel price data released by the Central Energy Fund, the AA said the outlook at mid-month, of around a 50 cents-a-litre increase, appeared manageable.
However, the sharp deterioration in the position of the Rand over the past week has been almost without precedent and petrol is now set to increase by 92 cents a litre, diesel by R1.07 and illuminating paraffin by R1.06.
These expected increases come on the back of the substantial increases to fuel prices in April, which saw the addition of 52 cents a litre being added for the general fuel and Road Accident Fund levies - as announced in former Finance Minister Malusi Gigaba's budget speech.