VIROSOL
http://www.ebay.co.uk/itm/5L-Professional-Eco-Friendly-Cleaner-Degreaser-For-Oil-Dirt-Grease-Marks-Stains/290935096954?epid=1388347382&hash=item43bd15467a:g:EQEAAMXQhpdRzUm2
This stuff is amazing.
It is a waterbased citrus smelling degreaser/cleaner for all your oily gunked up dirty...