Wear safety goggles when working on a vehicle to protect your eyes from battery acid, gasoline, and airborne dust and dirt from moving engine parts. Allow soaked rags to dry thoroughly in open air before discarding. Store rags and flammable liquids only in fireproof containers. Keep a fire extinguisher suitable for gasoline/chemical/electrical fires on hand whenever working on a vehicle. INNOVA 3568 - Digital Timing Light Manual