Gibbs Oil is a good choice - no silicone.
"Gibbs will replace all the other lubricant, penetrant and degreaser products you use, including white lithium grease, silicone, teflon, contact cleaner, carburetor cleaner and belt dressing … as well as any vinyl, leather and wood treatment products … and that saves you a whole lot of money!"
"Since 1969, when Paul Gibbs (a Harley-Davidson mechanic with a background in chemistry) invented Gibbs Brand, no one has ever expressed dissatisfaction and no one has ever returned a single can."
http://www.getgibbs.com/
