I've had good luck with Turtle Wax Ice liquid. It goes on very easy and more important, comes off very easy. I just did the entire rig a couple weeks ago. I had to go to the dealer (200 mile round trip) last week and murdered several hundred bugs on the front cap coming and going. As soon as I got home I got out the car wash bucket and my long reach brush, the bugs came right off. I tried Meguiar's marine/rv cleaner wax (blue bottle) last fall. It goes on fairly easily but was a major PITA to get off.
2015 Forester 2301 - Chevy
Skip & Deb - Denmark, ME & Delray Beach, FL