The function of lead additives in petrol is described, together with the effects on various engine components of their removal. The corrosive wear mechanisms are described in detail, and the effect of alternative additives in reducing corrosion and wear are covered. A number of field case histories are described, including experiences in Sweden, where lead replacement petrol was introduced in 1992. The article concludes with a series of recommendations designed to minimise possible damage to engines caused by substitution of leaded petrol by LRP.

Lead replacement petrol (LRP) may cause engine damage, and minimizing damage is crucial for implementing the lead ban and implementing lead-free fuels.

The lead ban, lead replacement petrol, and the potential for engine damage

Key Takeaway: Lead replacement petrol (LRP) may cause engine damage, and minimizing damage is crucial for implementing the lead ban and implementing lead-free fuels.