MEDFORD, Ore.-You can expect freezing fog in the mornings around the Rogue Valley for the rest of the week. You may want to give yourself a little bit of extra time in morning as you head out the door to scrape the ice off of your windshield.
Safelite Autoglass tech, Aaron Kimling, says that using your defroster to melt ice can actually end up cracking your windshield. He has been repairing and replacing windshields for 4 years.
"A simple analogy for that is you're taking a hot coffee pot and putting it in cold water. That coffee pot is going to explode. Glass is no different. It's cold outside, you turn on your heater, and that heat from the inside is going to heat up that windshield really really quickly causing it to crack out," says Kimling.
He says that this is most likely to happen if you already have an imperfection on your windshield. A rock chip or crack can be so small, you might not even notice it's there. When you use your defroster to melt ice, the rapid temperature change from cold to hot can expand a crack.
Instead of using your defroster, Kimling recommends you use a de-icing spray or a regulations ice scraper. A regulations ice scraper is one that you get from the store for the specific purpose of scraping ice. You can get both of these from an auto parts store.
"Don't use CD cases, don't use your cell phone case. Don't use anything other than that. Odds are, you're going to scratch your windshield because of the dirt from the previous days drive...things of that nature. You don't want to scratch your windshield."
Kimling told me he's seen a lot of scratched and scraped windshields after people tried to use something other than an ice scraper.
A de-icing spray is just made with just a couple simple ingredients and it's easy to make at home.
"If you are industrious like many, you can create your own and it's super simple. Just 2/3 rubbing alcohol and one part water. So 2 parts rubbing alcohol, one part water, spray it on there, give it a second, you're good to go," says Kimling.