Q: While adding windshield washer fluid to my car’s reservoir, I spilled some on the ground and my dog started licking it. I sopped up the liquid before he got more than a taste, but afterward, I wondered: Is windshield washer fluid actually toxic to dogs?
A: Yes. Most windshield washer fluids are about 20-30 percent methanol, which is toxic to dogs, cats, humans, and other animals. Some windshield washer fluids are 100 percent methanol, and others contain additional toxic antifreeze products, like ethylene glycol.
