A familiar story, told again

There is something uniquely unsettling about watching a crisis unfold in real time that historians have already written about. The Middle East is on fire. A narrow stretch of water that most South Africans could not find on a map is choking the world's oil supply. Diesel - the fuel that grows our food, moves our goods, and powers our logistics chain - has lurched upward by amounts that have no precedent in recent memory.

In Parts 1 and 2 of this series we examined why the headline CPI figure systematically understates the cost of living for most South Africans, and why retirement planners who use it as their long-term inflation assumption risk running out of money. We now turn to the fuel crisis - the most powerful short-term inflation accelerant in the modern economy - and ask what history tells us to expect.

What economists are actually saying

South Africa's leading economists are broadly in agreement that this oil shock represents the most significant inflationary threat the country has faced since the Ukraine war of 2022 - and potentially more serious.

The consensus: March 2026's 3.1% CPI reading was, as one economist described it, "the calm before the storm." The real inflationary impact had barely registered in that release. It will arrive in the months ahead - pressuring the SARB to reconsider rate cuts and removing one of the few pieces of relief over-indebted households had been counting on.

The cascade effect: how fuel becomes everything else

To understand why a fuel crisis is ultimately an inflation crisis, you need to understand how deeply petroleum is embedded in the cost of everything South Africans buy.

Food is the most direct casualty. South Africa imports approximately 80% of its fertiliser, which accounts for roughly 30% of agricultural input costs. Higher diesel then compounds the problem: tractors, harvesters, irrigation, the cold chain, and the trucks moving produce all run on it.

Transport is immediate and visible. Minibus taxi commuters - the primary mode of transport for tens of millions of working South Africans - already spend up to 40% of modest salaries on transport. There is no realistic alternative.

Manufacturing and insurance follow the same path. Steel, mining, processing, and construction face higher operational costs that get passed on. Vehicle and home insurance premiums - already running above inflation - face fresh upward pressure as replacement parts and logistics costs rise.

Try it for yourself

See what a fuel-driven inflation surge does to your plan

Headline CPI is a smoothed, basket-wide number. Your retirement income is paid out of a portfolio that experiences the real-world version. Use the interactive tool below to model how an elevated inflation rate - of the kind we are now living through - shifts your retirement runway. Then bring the result to a review with an AS Brokers adviser.

We have been here before: the 1973 oil shock

On 6 October 1973, Egypt and Syria launched a surprise assault on Israel on Yom Kippur. Within two weeks, Arab members of OAPEC had retaliated against Israel's Western backers by cutting production, raising prices by 70%, and imposing a direct embargo. South Africa was among the targeted nations.

At the time, the Middle East accounted for 36% of world oil production. The embargo removed 4.5 million barrels of oil per day from global markets. Crude surged from less than $3 a barrel to more than $12 within months - a near 400% increase.

Iran - then ruled by the Shah - refused to join the Arab embargo and continued supplying South Africa. The Vorster government imposed a 70 km/h speed limit on what is now Gauteng, closed petrol stations one day a week, and shortened trading hours. Pump petrol, 12 cents a litre in 1973, reached 54 cents by 1979 - an increase of 350% in six years. South African CPI would climb toward 15% by the mid-1980s.

2026 vs 1973: same strait, different world

The parallels are striking. The structural differences shape how this crisis will land for South Africa.

What this means for your inflation reality

Part 1 of this series established that CPI understates the real cost of living for most middle-class South Africans. Part 2 showed why using the CPI headline for retirement planning is financially dangerous. The fuel crisis now introduces a new dimension: the official figure will likely remain a lagging, smoothed picture even as household budgets are experiencing a real-time shock.

The April fuel increases hit on 1 April. April CPI lands in May, capturing only one month and only the portion of the shock visible in formal retail prices. The downstream cascade into food, logistics, and manufactured goods typically takes one to three months to filter through. The government's levy relief has partially masked the true increase - and when it expires, the unmasked price will hit in a single adjustment.

For anyone managing the retirement income problem, the takeaway is direct: the inflation assumption embedded in your plan needs to survive years like this one, not just the calm averages of the long run.

The lesson that keeps getting ignored

More than 50 years separate the 1973 oil embargo and the 2026 Strait of Hormuz crisis. The faces have changed, the alignments have shifted, and South Africa is a fundamentally different country. The structural lesson is unchanged.

South Africa is an oil-dependent, oil-importing economy in a politically volatile world, and every major oil shock translates into an inflation surge that the official statistics capture slowly, partially, and with significant delay.

For individuals, the practical lesson is simple. When experts say inflation is under control, ask them which inflation they mean. For the person filling their tank, paying medical aid, insuring their home, and watching the grocery bill climb, the answer is rarely the one on the page. A self-funding retirement is built on assumptions that survive the years that look like this one - not just the calm averages.

Common questions