Seems its safe on painwork, though i think a good coat of wax on paintwork would be cheaper.. Autoglym is good stuff. Use acf on/in switches and locks as well as wheel rims. WD40 is good but i have found it thickens/ goes treacly inside locks after a while so you end up squirting more in to make it fluid again..... http://www.acf-50.co.uk/motorcycle.htm
I spray everything, paint, chrome, electrics, on my EFI (except brakes, tyres )and have done for 4 winters now.Excellent stuff. Would'nt use anything else.
Cheers