Many thanks Chris.P for his hint on cleaning new tyres with some brake cleaner following a previous thread.......
Bad Friday.......... I took my new Corsa's into work and gave them a good going over as Chris suggested .... I was using a new white cloth and the deposits/oil etc that came off was surprising, the cloth soon became completely black!
Shame about having to buy a can of cleaner from Halfords when I work in the petrochemical industry....can't I just slap some ethelyene on
Dont worry - I know !!!
Cheers Chris