Which engine oil viscosity to choose for the hot climate of Mali?

Mali's Sahelian climate, characterized by high average temperatures often exceeding 40°C during the hot season, subjects vehicle and industrial engines to extreme thermal stress. In this challenging environment, choosing the right engine oil viscosity is crucial for engine longevity and breakdown prevention.

What is the SAE viscosity index?

The viscosity rating (e.g., 10W-40) defines the oil's resistance to flow. The first number followed by 'W' (Winter) indicates cold fluidity. The lower this number (0W, 5W), the more fluid the oil remains at low temperatures, making starting easier. The second number (30, 40, 50) indicates viscosity at high temperatures (100°C). In a country like Mali, this second rating requires the most attention.

Oil that is too fluid at high temperatures risks breaking the protective film between moving parts under the Bamako sun, leading to premature wear or engine seizure.

Recommended ratings for Mali

For modern gasoline and diesel engines driving in urban areas or long distances (Bamako-Kayes, Bamako-Sikasso), synthetic or semi-synthetic ratings such as 5W-40 or 10W-40 offer an excellent compromise. They guarantee instant lubrication upon startup while maintaining sufficient film thickness at high temperatures.

For older vehicles or heavily loaded heavy-duty transport trucks, a higher rating such as premium quality 15W-40 or 20W-50 is often necessary to compensate for mechanical clearances and ensure optimal seal in the cylinders under high heat.

The LUBRICO range: A certified answer to local demands

Exclusively distributed in Mali by AD NEGOCE, the LUBRICO lubricants range is formulated with advanced additives against shear and thermal oxidation. Whether for latest-generation hybrid engines requiring 0W-16/0W-20 or truck fleets needing foolproof robustness, LUBRICO maintains its nominal viscosity even in the heart of the Sahelian heatwave, optimizing fuel consumption and reducing maintenance costs.