Well-I removed the rear valance to experiment on and here are the results:
Dawn dishsoap-didn't touch it,I shouldn't say that,it did bubble in a few spots but wouldn't let go of the surface.
Murphey's oil soap-didn't do anything at all
WD-40-removed the oil now I am waiting to see if it removes the paint or eats the plastic.
I am going to a motorcycle shop tomorrow morning to see if they can recommend anything and I'll stop by the smart dealer and talk to them.I e-mailed Denis at s-p-d where I got the panels from and maybe he can make a few suggestions.