How do you fix a gas leak in an 05 Mazda 6?

To fix a gas leak in a 2005 Mazda 6, first ensure safety by turning off the engine and avoiding any open flames. Locate the source of the leak, which could be from fuel lines, the fuel injector, or the fuel tank. If it's a minor leak in a fuel line, you may be able to replace the damaged section or use a fuel line repair kit. For more significant issues or if you're unsure, it's best to consult a professional mechanic to avoid potential hazards.