Chemical Guys "Strong Wash Bug, Tar and Grime Remover" cleans even the dirtiest cars that are obliterated by bugs, bird droppings, splatter, airplane fallout, tree sap, tar and general "gunk". Formulated as a pre-wash concentrate to remove dried, squashed bugs from windshields, grilles, hoods, bumpers and headlights without harming your paint. Because of their tough exoskeletons and corrosive body fluids, bugs form a bond with your paint which means after washing, marks are still left behind. The last thing you want to do is use a rough brush or mitts to remove them, as this only induces more damage. Strong Wash will remove these bugs with ease along with other nasty fluids, oil and tar spots.