Greensboro, NC - A new viral video from Japan shows a way that's supposed to cool down your hot car on a summer day before you get inside. The clip shows the temperature drop from 41 degrees to 30 degrees Celsius. But instead of taking the video's word for it, 2 Wants To Know tried it in our 2 Test.
The car we used started with an internal temperature reading of 110 degrees Ferinheight. The first step is to open a window half way. Then you go to the opposite side's door and open and slam it shut three or more times. That's supposed to force the hot air out that window, so cooler air can come into the car. But after trying it out, our vehicle's inside was still at 110 degrees. There was no change.
One tip that did work from the internet though was to turn your steering wheel upside down when you park, so the place where your hands will go while driving is in the shade instead of the sun. Our test showed a 10 degree temperature difference between the two parts of the wheel.