Do Millers produce a lead replacement additive?
Yes, Millers VSP Plus. In the past, Tetra Ethyl Lead was introduced into petrol to improve engine performance by adding octane. It also lubricates the valves and prevents valve seat recession. Millers VSP Plus uses a compound of manganese known as MMT to replicate the benefits of lead. When added to unleaded petrol, it will add 2 octane numbers, prevent the onset of detonation and lubricate the valves. 97 unleaded becomes the equivalent of 99 leaded.
