What you will need:
- 3 parts white vinegar
- 1 part water
Please note: Here is the link where I found the recipe: http://www.howcast.com/videos/417396-How-to-DeIce-Your-Cars-Windshield
I added the food coloring to the water to help distinguish the different products for picture purposes only. To be completely safe consult a professional before trying this recipe.