TBH mate I didn't know or have ever heard of one but seems a pretty good way of keeping away the metal maggots http://www.amazon.co.uk/K%C3%A4rcher-26 ... is+cleaner or here http://www.ebay.co.uk/itm/Genuine-Karch ... 2a35c753f5 :fingersxxzibit206 said:A karcher chassis cleaner was one of the best purchases I ever made to keep corrosion on the underside of cars to a minimum