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Topic: Tire Risk Threshold at High Temperatures (Read 433 times) previous topic - next topic
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Tire Risk Threshold at High Temperatures
Here’s a new one (for me anyway)…. My DW asks, how high must outside temperatures be to worry about tire safety?
Warren
2019 MB “Dream Catcher”
Jeep Wrangler JL
Re: Tire Risk Threshold at High Temperatures
Reply #1 –
My guess is it would depend on the condition of the tires, inflation, speed and duration of travel. Road surface temperature may be an influencing factor.; concrete versus asphalt. Exhaust heat has also been discussed here.
Traveled between Austin and Birmingham on I-35 and I-20/59 recently. There was more truck traffic than I have ever seen with crazy 4 wheelers running in pacts bumper to bumper simulating NASCAR. With increased temperature there were numerous truck tire failures. The road surfaces on 1-20 are failing to the point of being dangerous.

Malcolm
2002 Mid Bath
Re: Tire Risk Threshold at High Temperatures
Reply #2 –
Modern tires are engineered for the heat stresses they are exposed to as long as the proper tire pressure is maintained.
Replacing the tires at a 5-6 year intervals is one way to reduce problems, the other is too keep the tires out of the sun.

The passenger-side, inner rear dual is exposed to more heat thanthe other tires, being located near the hot exhaust pipe.
Traditionally, once the rear tires have extenders install, most do not rotate the rear tires, they usuay wear out before they time out. 
After over 200,000 miles of LDing, we had our first blowout three summers ago, the passenging side rear inner dual, and I believe the heat exposure contributed to it. The rear tires are now rotated, side to side, every two years and a set of DIY heat shields applied to the exhaust pipe.
Exhaust heat shields | Flickr

Larry
Larry
2003 23.5' Front Lounge, since new.  Previously 1983 22' Front Lounge.
Tow vehicles  2020 Jeep Wrangler Rubicon, 2001 Jeep Cherokee
Photo Collection: Lazy Daze
Re: Tire Risk Threshold at High Temperatures
Reply #3 –
We had a tire blow when we were traveling through Arizona on the highway in the middle of July in the middle of the day. Don’t ask me why we did this 😳 Now we have a TPMS and take breaks when the asphalt heats the tires too much.
SoCal-Gal  (Tracy)
1991 26.5 RB
Previous 1988 22’ LD Multi plan
Previous 1992 Six-pack Camper
Spare the sealant, spoil the job.
Travelers: Tracy, spouse Anthony, Coton de Tulear, Gabby and parrotlet, Indigo
Re: Tire Risk Threshold at High Temperatures
Reply #4 –
SoCal-gal
How much would you guys say is too much in regards to heat on the tires? At what point do you decide to give it a rest? I like this thread because I have been wondering this too. Thanks.
John
1999 26.5 Rear Bath
Re: Tire Risk Threshold at High Temperatures
Reply #5 –
Quote from: JohnDon  - 
SoCal-gal
How much would you guys say is too much in regards to heat on the tires? At what point do you decide to give it a rest? I like this thread because I have been wondering this too. Thanks.
John

What type of TPMS are you using? When the sensor is mounted outside of the tire, on the valve stem, it is responding as much to the ambient air temperature as the tire temperature.
RV tires are built to withstand all normal conditions, including hot summer weather. I can't remember ever hearing about having to stop and cool the tires,
The thing to look for is much higher than normal pressure or one tire that significantly higher than the other, this will happen if the tire is severely overheated, which can be caused by a dragging brake caliper.

We had a desert blowout three years ago,  I had just checked the TPMS a minute before and everything looked normal. It alarmed about a second after the boom, the result of the rapid loss of air.

Larry
Larry
2003 23.5' Front Lounge, since new.  Previously 1983 22' Front Lounge.
Tow vehicles  2020 Jeep Wrangler Rubicon, 2001 Jeep Cherokee
Photo Collection: Lazy Daze
 
Re: Tire Risk Threshold at High Temperatures
Reply #6 –
“The passenger-side, inner rear dual is exposed to more heat thanthe other tires, being located near the hot exhaust pipe.”

Same tire location that blew out on our MB last Sunday.  I think 7 or 8 year tire age was also big factor.  It was not an inflation problem.   A muffler heat shield is a good idea.  It was a really hot day on a bumpy road.   Because I drive such low miles on tires and they looked great, I thought I was safe.  From now on, I’m replacing every 5 maybe 6 years.

  I would say for sure that tire manufacturers will need to make tire design adjustments related to climate-change long term. 

LarryD
2001 MB
* Not to be confused with Larry W (3000 of my posts are actually from expert Larry W due to Yahoo transition mis-step)