A new form of deception has emerged in Cameroon’s parallel fuel market, commonly known as “zoua-zoua.” Vendors are now disguising their products with makeshift filters, misleading customers about the quality of the fuel being sold.
Makeshift “Filters” to Reassure Buyers
According to recent reports, some sellers have started placing pieces of cloth or old socks inside fuel bottles, presenting them as filters “supposed to retain impurities.”
This setup, described as a “crude but clever staging,” is intended to convince buyers of the product’s supposed quality. However, despite the appearance of safety, the fuel remains questionable and often mixed with other substances.
Short Measures Add to Consumer Losses
Beyond fuel quality, vendors are also manipulating quantities. Customers report that reduced volumes are being served compared to other points of sale, creating what has been described as a “true mechanism of organized and repeated fraud.”
For many users, the practice highlights the fragility of informal consumption systems. While some sellers see it as survival through improvisation, the cost falls on the most vulnerable buyers.
As one observer noted, “behind this filtering trick that may seem amusing at first glance, it is in fact a well-crafted trap to strip clients with complete impunity.”
The “zoua-zoua” trade has long been a response to fuel shortages and high pump prices in Cameroon. However, with scams now targeting both quality and quantity, consumer trust in the informal market faces growing challenges.

