Heat. How how hot does everyone allow? Tire heat sensors?

I’m just east of you (Florence, SC) and I just had my heat on for a few minutes

I can’t answer your question but always preferred driving at night during the summer. One reason was to minimize the tire wear due to the daytime heat.

 

I never heard of heat being any problem. MD Alignment guys said before the tires good till about 400 PSI the aluminum rims will fail before the tires do. They said the hotter the tires the less flexing the side walls do because of more air pressure. Running the tire on low air pressure mean the sidewalls flex more and build up for heat till the tire fails. They say 113F plus the payment even being hotter was not a problem for the tires.

 

Assuming perfect tires with known history and no sidewall dmg...

Lotta assumptions to make especially if hes got a company trailer...

 

I don’t know that you have to worry about them falling if they’re in good condition and properly maintained. I know we had a high school kid mounting tires a few years ago and he used ether on a 315…he had enough pressure in there to blow the Teflon seals out of the clip on air chuck. I hesitantly ran that tire till it was bald and never had a problem.

 

You’re overthinking it.

@Brandt is 100% correct about sidewall flex and pressure gain. Underinflation and speed put a huge amount of heat into a tire, due to sidewall flex. In contrast, a couple weeks ago, I had a blowout on a trailer with about 11K pounds on it. Every tire was barely even warm, except the blown tire; it was so hot I could barely put my hand on it. I have no explanation for why it built up so much heat, but, it cashed out.

 

Under inflation is a killer. I don't know why though as air heats up expands. I can't see a tire with 50 psi getting as hot and expanding as a tire with 100.

Maybe it does though.

The trailer I pull has super singles and will drop 15 psi overnight. Probably different now that we're up in the 100s

 

When hot, I'd run at night if I could. Recaps don't like heat, either,,I don't know, who ever thought it would be so hot in July? This happens every year, people, I read, if it wasn't for A/C, there would be no Phoenix. Not to worry, though, in a few short months, it will be back to winter pileups we haven't heard about for a spell.

 

I’m trying to find me one of those “Feels Like Thermometers” they keep talking about on the news.

 

HaHa. No such thing. Just a number they pull out of a hat to make the weather seem more dangerous.
The higher the humidity, the more the body responds to the heat. But, 100/deg is still 100/deg. If you stand in the shade and the wind is blowing 15mph, it doesn't feel like 100/deg.