Up date,
Met up with Tom today, and it is Hydraulic oil, did a test and it comes out easy peasy, explained how to remove the streak marks as well, again quick test and these started to remove.
Top bloke as well. Any problems give me a call mate.
Thanks for your help to today Roger, I'll keep you updated with the clean. Thanks for the info on materials to use as well, very helpful. See you in sunny Surrey again soon no doubt
