Darren Now i,m confused this morning you made out you did not know the Additive,s were called Eloys.So i give brief overview to help some with no idea how the system work,s. Perhaps next time i will just copy the full genuine peugeot booklet and any other data i have on this and save my time, but give every-one a LONG read. Or perhap,s i will leave the copying to you . Kevin.