Some manufacturers no longer use methanol (because it is a hazardous liquid) or denatured alcohol (because it can ruin a vehicle’s paint). Can you put water in windshield wiper fluid?

What Can You Do If Your Wiper Fluid Freezes? So ... You'll also want to check your antifreeze. This liquid helps stop your engine from freezing and keeps it from overheating.

She told The Oregonian that Anderson had just sprayed windshield-wiper fluid on his car while driving, and it's possible some of it landed on the other driver's vehicle, which police later ...