I use the blue bottle of Aerocosmetice Wash-Wax.
http://www.wash-wax.com/care.html

I heard Simple Green is a no-no for corrosion.

Viperdoc wrote:

Any advice on the best wing leading edge cleaner /bug remover? I've tried
Simple green, car wash detergent in a spray bottle, and PPC Wing Clean. Any
other suggestions?