
My mother took her van to the garage because the electric motor in her window seemed to have burned out. (Turns out all it needed was a spritz of WD-40.)
But while she was there, they noticed that she had a low (nearly flat) tire. They took it off, inflated it and checked for leaks. They found none. They told her that the very hot weather can make a tire lose its seal with the rim and let air slowly leak out, and that was probably it but she should keep an eye on it. A week and a half later, no problems. I thought their explanation was bunk, just meant to allay an old lady's worries. (Seems like Hot Weather is the new El Nino, in terms of taking the blame for everything this year.) At any rate, no leak.
So yesterday, I go out to my truck after work and I have a nearly flat tire, only 15 pounds of pressure in it. I look carefully for a nail or something. Finding nothing, I fill up the tire. Today, it's just fine. What's up?!?
If I happened to live with her, I might think some hoodlums had let the air out. But I live 40 miles from her. Can hot weather really do this to a tire?