[Howard]

When I helped in a speedway pit crew a few years back we used to coat the car with CRC 5.56 (or WD40) before and inbetween races. The car looked shiny for the parade laps, the mud from the track did not stick to it, and washing off when we got home was a breeze.
Currently, we are experiencing a Locust plague, which was turning the front of my ute into an ordinary orange/brown colour. So i have been coating the front of the car in said 5.56... The little buggers burst & slide off on impact now!
I don't know how it will effect the paint long term, but most of the front of my ute is plastic, anyway.