Its come to my attention that a lot of people do not know how to deal with a hot car in summer. A lot of people will get back to their car, after hours of it being parked in the full sun, and will open the door to be blasted in the face with furnace-level temperatures, and you'll just clamber in and shut the doors and leave the windows closed and you'll start driving that thing, and you'll wait for the air-conditioning to battle and overcome the heat.
The inside of a car can get up to 40°C/104°F hotter than the outside temperature. Why would anyone get inside that????? It's gonna take your air-conditioning at least half an hour to combat that and bring the temperature down to something even remotely reasonable, and in the meantime you're sitting there risking heatstroke.
Now, I understand that it's currently winter in the northern hemisphere, which is where most of this site lives, but a) I'm in the southern hemisphere and today was Lots Of Degrees, and b) y'all should read this now and commit it to memory or queue it to reblog in summer or whatever, because it boggles my mind that some of you get into a car whose interior is literally oven-hot.
Get a sun visor. One of the big ones that goes inside your windshield. You will not believe how much cooler those things keep your car. Get one, use it. Leave it to bounce around in your back-seat on cooler days, but have it on hand for the stinkers. They range in price but two-dollar stores usually have them for pretty cheap.
Leave the windows of your car cracked open. It doesn't have to be much. Literally just the tiniest amount will mean that the heat building inside your car has a way to escape, meaning the interior temp will naturally be kept lower. The larger the opening, the better, but depending on the neighbourhood you're parking in, maybe it would be better to have them open just a sliver. Even the tiniest crack will help. Ever tried warming up an oven with the door open? It doesn't work well. This is the same concept. If there is a way for the hot air to escape, the inside of your car will stay a lot cooler than it otherwise would have.
If you're fancy enough to have an openable sunroof (that's the dream) then leave that open a bit as well.
Youve just gotten back to your car and opened the door, and its hot as fuck in there. Open another door, ideally on the other side of the car, and let the hot air escape. If you can open all four doors and the boot, then thats even better. A bunch of the hot air will flush out. Not all!!! But a lot. Give it anywhere from a few moments to a few minutes, depending on how much of a hurry you're in.
Get in, start the car, open all the windows. Yes, even if you hate having the windows open.
Put the air-conditioning on full blast, and make sure the recycle is turned OFF. This means it pulls fresh air from outside the car (hot, but less hot than inside) and pumps that into the car, further displacing the heat inside the vehicle.
Start driving, still with the windows down. Once you get up enough speed, the force of the air from outside coming in will blast the rest of the excess heat out of the car.
The temp inside the car will now be roughly equivalent to the temp outside the car. Still hot!!!! But MAJORLY less so, and majority more handle-able by your air-conditioner.
Put all your windows up, and switch the air-con over to recycle. This means it takes the air in the car and cools it, then spits it back into the car, meaning that with each cycle, the air gets progressively cooler a lot faster.
If you do this, your car will be a hell of a lot more comfortable a hell of a lot sooner than it would be if you got into a 60°C/140°F cabin and just.... endured that, until your aircon could overcome it.
This post has been brought to you by an Australian who knows not one but TWO people who get into 60°C cars and wait 15 to 30 minutes for their car to drop back down to a temperature that's even REMOTELY tolerable.
