Johannesburg, 1 September 2026 — The official September fuel prices are out. They land above every forecast that preceded them. From midnight going into Wednesday 2 September, petrol 93 and 95 both rise by R1.34 per litre. The Department of Mineral and Petroleum Resources announced the adjustment on Monday. Diesel 0.05% rises R2.93 and diesel 0.005% rises R3.14, per the statement carried by SAnews. Inland 93 unleaded moves to R26.76 and 95 to R26.92. Meanwhile, inland wholesale 50ppm diesel reaches R30.05, back above the R30 mark. Wholesale illuminating paraffin rises R2.13 and LP gas 69c per kilogram.
What Drove the September Fuel Price Increase
The drivers sit in the statement’s own numbers. The average Brent crude price rose from $82.37 to $87.88 during the review period. The DMPR attributed that to continued US and Iran tensions, uncertainty over oil flows through the Strait of Hormuz, and higher shipping costs. Additionally, international product prices rose on supply shortages linked to the Russia and Ukraine conflict and lower global inventories. Those factors lifted the basic fuel price of diesel by 321.29c per litre and petrol by 127.79c. However, the rand strengthened from R16.46 to R16.21 against the dollar, trimming 29.06c from diesel and 21.07c from petrol.
The Slate Levy and Wage Adjustment Behind the Petrol Jump
Two structural adjustments explain why petrol doubled its forecast. First, the slate levy rises from 61.38c to 83.28c per litre, an increase of 21.90c, under the self-adjusting slate mechanism. The cumulative slate balance stood at negative R9.519 billion at the end of July. A month earlier, it was negative R7.418 billion. Second, the minister approved a 4.9c per litre increase in the petrol price structure to accommodate the forecourt wage settlement. Consequently, a mid-month projection of 66c to 85c for petrol became R1.34, and August’s 52c relief is gone twice over.
The Squeeze
Why the Official September Fuel Prices Hit Fleets Hardest
For fleets, the official September fuel prices confirm the warning this desk carried through August, with one twist. The slate cushion did not merely run out. It inverted. A month ago, 61.38c of slate levy was the last shelter between operators and the international diesel market. Now the levy rises to recover a R9.5 billion hole, so the mechanism that softened earlier months adds cost instead. The cumulative arithmetic for 0.05% diesel is severe. R6.87 per litre from March to July, R1.38 in August and R2.93 now adds up to more than R11 since March. Furthermore, the diesel move lands eleven days after the RFA’s warning. Fuel movements, it said, tip over contracts priced at unsustainable levels. The number that warning lacked has arrived.
Every Grade in the Official September Fuel Price Table
| Fuel | Change From 2 September | New Inland Price |
|---|---|---|
| Petrol 93 (ULP and LRP) | Up R1.34 per litre | R26.76 |
| Petrol 95 (ULP and LRP) | Up R1.34 per litre | R26.92 |
| Diesel 0.05% (500ppm), wholesale | Up R2.93 per litre | R29.11 (coastal R28.24) |
| Diesel 0.005% (50ppm), wholesale | Up R3.14 per litre | R30.05 (coastal R28.79) |
| Illuminating Paraffin, wholesale | Up R2.13 per litre | — |
| LP Gas, maximum retail | Up 69c per kg (79c Western Cape) | — |
The Numbers Behind the September Fuel Prices
Fleet Impact
The Fleet Playbook for the Official September Fuel Prices
The working week starts with a repricing. Every diesel-heavy lane needs a quote that reflects R29 to R30 a litre from Wednesday. Fuel escalation clauses dated from 2 September need activating rather than filing. Above all, the pass-through has to be provable. Fleets running litre-level fuel monitoring know each route’s true consumption. A customer conversation about a R3.14 increase then starts from measured litres. Similarly, vehicle tracking with route management shows the empty kilometres and idling hours that a R30 litre makes expensive. The October cycle then begins immediately, with Hormuz risk and the slate recovery both still in play.
- Reprice every diesel-heavy lane at R29 to R30 a litre today: Wednesday’s trips run on Wednesday’s costs
- Activate fuel escalation clauses dated from 2 September: a clause on file recovers nothing
- Measure consumption per lane before the customer conversation: a proven litre beats an estimated one
- Watch the October cycle from day one: the slate recovery and Hormuz risk both remain live
Fleet Technology
How Measured Litres Survive R30 Diesel
At R30 a litre, every unmeasured litre is a margin decision made by nobody. DigitFMS makes the decision visible. D-Fuel tracks every fill, drain and burn against tank capacity and route data. Theft, over-filling and route waste then surface immediately. As a result, clients have cut fuel theft by up to 95%, and each lane’s cost rests on measurement. In addition, GPS tracking, route management and driver identification trim the empty running and idling that inflate consumption. Competing providers such as Cartrack, Tracker, Netstar, Ctrack and MiX by Powerfleet offer fuel management as well. However, the official numbers set the stakes plainly. Diesel has risen more than R11 since March. The fleets that know their litres will pass on a number they can prove. The rest will absorb a number they cannot explain.
Key Numbers · Official September 2026 Prices
Petrol 93 and 95: up R1.34 per litre; inland 93 R26.76, 95 R26.92.
Diesel 0.05%: up R2.93 to R29.11 inland wholesale; diesel 0.005%: up R3.14 to R30.05 inland wholesale.
Slate levy: 61.38c to 83.28c per litre; cumulative slate balance negative R9.519 billion at end-July; forecourt wage adjustment 4.9c.
Brent: $82.37 to $87.88 average; rand R16.46 to R16.21; effective midnight into Wednesday 2 September 2026.
Source: DMPR statement of 31 August 2026 via SAnews; BusinessTech; The Citizen.
Questions Answered
Frequently Asked Questions: Official September Fuel Prices
What are the official September 2026 fuel price changes?
Per the DMPR statement, petrol 93 and 95 both rise R1.34 per litre. Diesel 0.05% rises R2.93 and diesel 0.005% rises R3.14, rounded to R2.94 and R3.15 in some reports. Wholesale paraffin rises R2.13 and LP gas 69c per kilogram.
When do the September fuel prices take effect?
At midnight going into Wednesday 2 September 2026. The Department of Mineral and Petroleum Resources announced the adjustment on Monday 31 August.
Why did petrol rise so much more than forecast?
Three reasons. Recoveries swung back deep into the red in the final week of August. The slate levy rose 21.90c per litre. Additionally, a 4.9c forecourt wage adjustment entered the petrol price structure. Consequently, a mid-month forecast of 66c to 85c became R1.34.
What happened to the slate levy?
It rose from 61.38c to 83.28c per litre, effective 2 September, under the self-adjusting slate mechanism. The cumulative slate balance stood at negative R9.519 billion for petrol and diesel at the end of July. A month earlier, it was negative R7.418 billion.
What drove the diesel increase?
International product prices. Brent averaged $87.88 against $82.37 in the previous period. US and Iran tensions, Strait of Hormuz uncertainty and higher shipping costs drove it. Diesel’s basic fuel price contribution rose 321.29c per litre, and the stronger rand offset only 29.06c of that.
How much has diesel risen in 2026?
For 0.05% diesel, more than R11 per litre since March. That is R6.87 from March to July, R1.38 in August and R2.93 now. Inland 50ppm diesel at R30.05 wholesale is back above the R30 mark.
What should fleet operators do this week?
Three things. Reprice every diesel-heavy lane at R29 to R30 immediately, and activate fuel escalation clauses dated from 2 September. Then measure consumption per lane, so the pass-through rests on real litres rather than estimates.
Figures checked 1 September 2026. Source: the DMPR statement as carried by SAnews, with price tables from BusinessTech and The Citizen. Related: our mid-month September outlook and the official August fuel prices.
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