How much windshield wiper fluid containing anti-freeze would it take to kill someone?

Windshield wiper fluid often contains methanol, which is toxic. Ingesting as little as 30 to 240 mL (1 to 8 ounces) of methanol can be lethal, depending on factors like a person's size and health. It's crucial to keep such substances out of reach of children and to seek immediate medical help if ingestion occurs. Always use products as intended and avoid any harmful exposure.