Last week my son came by on his way from Florida to Va and the front of his truck was black with bugs (I have never seen anything like it - it was bad). We tried pressure washing them off and it wouldn't come off! Then I remembered something I had seen on TV and tried it. It works great.
I mixed baking soda with enough water to make a thin paste. I sponged it on and let it sit a few minutes and then went over it with the sponge and all the bugs came off with very minimal rubbing. Just make sure you rinse well.
~Submitted by Garnetta~