Tire pressure in excessive heat

Never let air out if a hot tire. Check pressure after they cool down like after a 10 hour break.....

I do keep the speeds down a little in really hot weather....

 

Agreed, you check your tire pressure out here in the west, before it gets hot. I run at 100 psi 50 to 80 degrees, It allows for heat expansion. I also use a FLIR type temp gauge to check tires when I stop looking for the one that does not match the rest, looking for a low pressure tire as a rule. also good for checking brakes.

 

Most of the gators your seeing are from trailers and drives very seldom from steers, get them when there cold set them somewhere between 100 and 110 this time of years. Slow your speeds down to you know something reasonable depending on your load 55 to 60 if its over 100 degrees.

 

Most of the gators you see are from not running enough air pressure in recaps, keep em aired up tight.

 

Your right soft tire are a bigger issue than anything else,,, When i drove powder we'd blow off the trailers in the summer sometime 2 at a time. Had one trip tp Vegas where I had lost a outside rear top of Mountain Pass heading toward statewine, by the time I got parked in Whiskey Petes I needs 4 Tires on the trailer. One of those 104 + degree days coming out of Death Valley.
We'd generally blow off the cap, not the casing but if you kept driving it would take the casing too.

 

as said above never let air out of a hot tire. most of the tires you see blowen is recaps. when it's too hot I try to run at night .it's a lot easer on equip.

 

The tires can take the heat and the pressure. The more air pressure the better ! The tire heat up when the sidewalks flex. So less pressure more sidewall flexing means more heat. The tire can take more pressure then the rims. If you listen to satellite radio their is a tire guy that has 30 years experience and he says the tire won't blow out till like 400psi. The rims are rated for like 120psi cold. He says the pressure on steer tire is the minimum to carry the weight rating on side wall. Not the maximum the tire can hold. So letting air out makes even more heat. He tell people to run the tires 10 psi over the what's on the tire because when you hit the brakes the tire shape changes and that part of reason for uneven steer tire wear.

 

I run to Phoenix, AZ a few times a week for over fifteen years with my tires inflated to 110 psi cold and have never had a problem in the heat.

Your tires are engineered to run in all types of weather conditions so keep your tires inflated to the recommended air pressure regardless of the outside temperature.

Also the number one reason of tire failure regardless of the tire being a virgin or a cap, is under inflated tires.