Originally Posted by ezveedub

You can use alcohol, just don't leave it on there, for unless they are submerged for soaking. Acetone generally has more cutting power to get out gunk. Instead of WD40, we have been using Pledge on the plastic parts of the buggy. It clean off the dirt and leaves a nice polish wax that keeps the plastic from turning white. Also keeps the dry dust from sticking to the car. Plegde and a compressed air work great. Use a rag to wipe down the surface after using the Pledge and the car is generally left very clean.