I knew an old man who used to get a new T-Bird every year. Before he went on a long trip he would spray the front grille, bumper and front area of the cars hood with PAM cooking spray. He claimed it was meant to hold up to oven temperatures and remain slippery for the foods baked or cooked on it, and since it was basically vegetable oil with propellent it would not damage his paint or chrome and the bugs would come off it easily. Sounds worth a try. eh?