Safe on all vehicle surfaces including hoods, fairings, windshields, plastic, vinyl upholstery, painted surfaces and chrome! Safe, biodegradable and will not leave a residue. Just spray it on, let it soak for 1 to 2 min, the wipe off with a water-saturated cloth or spray with a water hose. Not a soap or detergent, it's a surfactant that works to release sticky bug splatter, food and other organic residues from the surfaces they stick to.