Fleet and wholesale diesel buyers in Gauteng hear “the CEF number” every month. Understanding what that number is — and what it is not — stops bad quotes and unrealistic budgets. This article explains the structure using public references from CEF Group and the Department of Mineral and Petroleum Resources (DMPR fuel price structure). It does not invent today’s cents-per-litre; always read the latest CEF media statement for the current month.
Petrol pump vs diesel wholesale — different rules
- Petrol: retail (pump) price is regulated and typically adjusted on the first Wednesday of the month.
- Diesel: the retail pump price is not regulated the same way. Authorities publish a wholesale list price (and related structure). Your yard gate price then reflects wholesale list, logistics, credit, wet stock risk and supplier margin.
That is why two Benoni buyers can see different delivered prices on the same Wednesday even when both cite “CEF.”
What CEF calculates daily
On behalf of government, CEF calculates daily price indicators for petrol, diesel and illuminating paraffin. The cornerstone international element is the Basic Fuel Price (BFP) — an import-parity style build-up.
In plain language, BFP reflects the landed cost idea behind importing refined product: international product price references, freight and related shipping costs, insurance and loss allowances, harbour/storage-type elements, and stock financing — then converted with the rand/US dollar exchange rate (DMPR describes the daily FX timing used in the system).
Diesel and paraffin reference markets are weighted toward Mediterranean and Arabian Gulf export refining centres (see DMPR’s fuel price structure page for the stated splits).
From daily BFP to the monthly change
Daily BFP sits above or below the BFP already baked into the current price structures. That creates daily under- or over-recovery. Over the review period those days average into the monthly adjustment published in CEF’s press releases — which is why local prices often lag international moves by roughly a month.
A Slate mechanism tracks cumulative over/under recovery; a slate levy can apply when the account needs financing. Buyers see slate and other levies as line items in the published composition tables, not as a separate “CEF fee” on the invoice.
What sits on top of BFP in Gauteng diesel wholesale
Published wholesale diesel compositions (CEF media statements) typically layer domestic elements onto contribution to BFP, for example:
- Wholesale margin (regulated allowable)
- Secondary storage and secondary distribution
- Zone differential (Gauteng vs other magisterial pricing zones)
- Government taxes and levies (fuel levy, RAF, customs/excise-related items, pipeline levy, tracer where applicable, demand-side or slate items when active)
Exact cents change every month. Read the latest CEF PDF rather than reusing last quarter’s spreadsheet.
Sulphur grades matter: South Africa publishes separate wholesale paths for diesel such as 0.05% S and 0.005% S. Your supply contract should name the grade you actually receive.
How Gauteng wholesale buyers should use the CEF number
- Budget with the structure, quote with the statement. Use DMPR/CEF methodology for understanding; use the current CEF press release for the month’s list movement.
- Compare like with like. Same sulphur grade, same pricing zone logic, same whether the quote is ex-rack, delivered, wet or dry, cash or 30 days.
- Expect a gap to pump. Unregulated diesel retail means service-station pump stickers are not a clean “CEF + X” for bulk buyers.
- Watch zone and transport. Inland differentials and primary transport tariff changes can move zones differently even when the national BFP move looks flat.
- Quality still beats a one-cent win. Contaminated bowser diesel costs injectors; filtration and water drains remain part of cost of ownership — see Diesel Lab.
Where AVDMM fits
AVDMM in Benoni supplies lubricants wholesale and can discuss diesel / paraffin supply in the normal commercial way — against current market, not against a blog fiction price. For oils that protect the fleet that burns the diesel, see Delo and Havoline.
References (always prefer live pages/PDFs):
- cefgroup.co.za — CEF Group media statements and monthly price-change releases
- DMPR — Fuel Price Structure — BFP, petrol vs diesel regulation, domestic elements
Also see: Diesel Lab — conversion charts & diesel tips. Related: What is ISOSYN Technology? · Delo Gold CI-4 vs Delo 400 SLK CK-4 · Havoline 20W-50 vs Ultra S 5W-40 · Condition Monitoring Ladder
Follow AVDMM: Facebook · LinkedIn · Instagram
WhatsApp · Call office 011 422 1333 · Contact