Interesting debate on WD40 or GT85 etc. I've used these lubricant/cleaners on all my bikes for the last 12 years and never had problem with the chain, bodywork, plastics or hoses that I have used it on. In fact I swear by it. Would be interesting to clarify with the manufacturer.
Have emailed the manufacturer with our question and await the reply.
[Edited on 21-7-2003 by Flanners]