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South African diesel prices rise by R2.94 a litre for 500ppm and R3.15 a litre for 50ppm from midnight on Tuesday 1 September 2026, the largest single-month diesel increase of the year and a direct hit to every haulier running a South African fuel card.
Economy and Markets
1 September 2026 • 3 min read
Petrol goes up R1.34 a litre and diesel by up to R3.15 from 2 September. A stronger rand shaved more than 20 cents off the move, but international refined product prices swamped it. For long-haul operators, this is a rate conversation that cannot wait for month-end.
Both grades of petrol, 93 and 95 ULP and LRP, rise by 134.00 cents per litre. Diesel with 0.05% sulphur rises by 293.90 cents per litre and 0.005% sulphur diesel by 314.90 cents per litre. Wholesale illuminating paraffin adds 213.00 cents per litre and LP gas 69 cents per kilogram. The new prices apply from Wednesday 2 September 2026.
In the inland pricing zone, 50ppm diesel moves to roughly R29.56 a litre from R26.41, and 500ppm diesel to R29.11 from R26.17. Petrol 95 ULP inland moves to R26.92 from R25.58. That puts inland diesel within striking distance of R30 a litre for the first time, and it puts diesel above petrol by a wide margin — a reversal that changes the arithmetic on mixed fleets.
The split: About 93% of the diesel increase (R2.72 of the R2.94) comes from international refined product prices. The balance is domestic — a 21.90 c/l rise in the Slate Levy and a 4.90 c/l petrol retail margin adjustment. (Source: Department of Mineral and Petroleum Resources via Daily Maverick, 2026)
The cumulative slate balance — the gap between what was charged at the pump and what the product actually cost to import — sat at a negative R9.519 billion at the end of July 2026, of which R8.256 billion was diesel alone. Because that deficit is far above the R500 million trigger, the Slate Levy climbs from 61.38 c/l to 83.28 c/l on both petrol and diesel.
This matters for planning because the slate is a lagging recovery mechanism. It does not respond to this month's crude price; it repays last month's import shortfall. Operators who model fuel purely off Brent and the rand will keep being surprised by the domestic component.
Averaged across August, the rand firmed against the dollar and cut more than 20 cents per litre off the increase, close to 30 cents on diesel. It was not nearly enough. Net of that currency cushion, the basic fuel price still ran an under-recovery of R1.06 on petrol and R2.71 on diesel.
The underlying reason is structural: South Africa no longer refines enough product domestically and imports finished petrol, diesel and paraffin at full international market rates. Until refining capacity changes, the domestic pump price will track global product cracks almost one-for-one, and a strong rand will soften shocks rather than prevent them.
On a truck burning 40 litres per 100 km, R2.94 a litre adds roughly R1.18 per kilometre in fuel alone — about R1,180 on a 1,000 km leg before any other cost moves. Check whether your rate agreements have a fuel escalation clause with a defined trigger and reference price, and if they do not, raise it now rather than after two months of margin erosion. Cross-border operators fuelling in Namibia, Botswana or Zambia should re-run their fill-point strategy this week, because the price gaps that made certain depots cheapest have just shifted.
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Andre Klynsmith Entrepreneur & Technology Enthusiast Andre's expertise spans technology, blockchain, transport, and logistics — with a passion for innovation and driving positive change across industries. |
| Source: Daily Maverick View source › | 31 August 2026 |
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