How To Clean Inside Car Windows Streak Free. Mix a bowl of warm water with a teaspoon of dishwashing liquid and add in just a few drops of vinegar (whatever you have in the kitchen should do the trick). Make sure you are done washing your car’s exterior completely before you move on with the.

Avoid washing your car under direct sunlight. There are several ways to use vinegar to clean car windows, including: This step saves you lots of.