The importance of lead substitutes in fuels for older vehicles

Tetraethyllead was added to gasoline as early as the 1920s for two main reasons: to increase the octane rating, thereby reducing the risk of engine knock, and to lubricate valve seats to prevent premature wear. These benefits played a crucial role in the performance and longevity of internal combustion engines for decades.

However, the adverse consequences of lead on human health and the environment are serious. Exposure to lead can cause neurological disorders, developmental problems in children, and other severe toxic effects. These risks led to a gradual ban on leaded gasoline in many countries starting in the 1970s.

To meet the needs of older engines while meeting current environmental standards, lead substitutes have been developed. These products contain compounds that mimic the lubricating and anti-knock properties of lead without posing health risks. They are often formulated with additives such as potassium and sodium, which protect valve seats and improve octane rating.

Using lead substitutes is simple: they are added directly to the fuel tank when filling up. For owners of classic cars, these additives are essential for preserving the engine and maintaining optimum performance. They allow you to drive a classic vehicle with the assurance that the engine will not suffer damage due to the lack of lead.

Les substituts de plomb représentent une innovation clé dans le domaine des additifs pour moteurs. Ils permettent de concilier la préservation de véhicules historiques avec les exigences environnementales contemporaines. Pour tout propriétaire de voiture ancienne, ces substituts sont non seulement une assurance de protection mais aussi un engagement envers un avenir plus sain.