Thought I would start a new thread on this..My TPMS also shows tire temps. Tire temps while towing today (in *F):LF 107LR 107RF 120RR 113Ambient temp 71* and towing 70 mph. This is a brand new set of LT225-75-16E tires. I had some dry rot on the old set and on further inspection some out-of-round and pending tread separation on the RF tire. Possible that higher tire temps while towing indicate overloading?This was my first trip with these brand new tires. Are these temp differences meaningful?According to my last trip to the scales, The trailer is 8500 lbs total, 1200 on the tongue and 7300 on the axles. Since the tires are rated at 2680 lbs each at 80psi, I run them at 75 psi, making their max load 2560 according to the inflation table. 2560*4= 10,240 so I am running at less than 75% of tire capacity.The right side is where the kitchen is and some heavy items are loaded there, including case of water, case of beer, etc.Thoughts?

Was the sun on the right side of your rig? I routinely get higher temps on the sunny side when traveling.

Looks about right. I look for a big difference between same side tires and dually tires before getting concerned.

HappyKayakers wrote:Was the sun on the right side of your rig? I routinely get higher temps on the sunny side when traveling.I was headed Southwest on the Western KY Parkway from 2-6 pm, so yeah, it probably was. Hadn't considered that!

Valkyriebush wrote:Looks about right. I look for a big difference between same side tires and dually tires before getting concerned.I got 7* difference between F and R on the same side, how much is too much?

Did you forget to change to summer air in your tires? :BI would keep measuring the temps as you travel. It may be an anomaly. Over time if it runs higher try full pressure to see what you get. Maybe its in the build of that particular tire. What you could do is to swap out the tire to another position. I know this is more work but a scientific approach will alleviate some guess work.I cancelled my reservations at My Old KY Home today since we are expecting over 1.5 of rain. Hopefully your travels will be drier.

Tire Temps | Good Sam Community

14 Replies

fcooper
Explorer
Apr 06, 2015
BurbMan wrote:
Valkyriebush wrote:
Looks about right. I look for a big difference between same side tires and dually tires before getting concerned.

I got 7* difference between F and R on the same side, how much is too much?

As an experiment, you could swap the rf and rr sending units to see if the high temp moves with the transmitter or stays with the tire position. It could just be the tolerance on one transmitter is a little higher.

Fred
JIMNLIN
Explorer III
Apr 05, 2015
The right side is where the kitchen is and some heavy items are loaded there, including case of water, case of beer, etc.

Thoughts?

This. Plus.... Now if you had some side wind from left to right the right side tires can be running with more weight than the left side.
Side wind usually (south or north) is a big deal out here in the flat lands.
Dump the water and etc but save the beer.
Valkyriebush
Explorer II
Apr 05, 2015
BurbMan wrote:
Valkyriebush wrote:
Looks about right. I look for a big difference between same side tires and dually tires before getting concerned.

I got 7* difference between F and R on the same side, how much is too much?

7 not much. I have 6 tires, so It's hard to explain, but get an infra red thermometer and you'll know when something is out of whack.
BurbMan
Explorer II
Apr 02, 2015
Tachdriver, we're down in Murray through Easter. Rained some last night and some showers passing through today, but not that bad. Saw the sign for Old KY Home and thought about booking a weekend there.

Bull Rider, forgot to pack the IR temp gun this trip. I just adjusted the brakes and wanted to get hub temps as well. All were cool to the touch at my one fuel stop so that was good.

rbpru, these are the RV tires that we are talking about....I don't have TPMS on teh truck. Sorry that wasn't clear.
Ivylog
Explorer III
Apr 02, 2015
OP, one trip is not enough time to build a base line for what's normal. In your rig's picture the tires look very close together...do you have torque flex axles? If so they do not equalize so you will not have equal reading front to rear. Check the brake drums too with a IR temp gun as that is another unequal source of heat.
IPegasus
Explorer
Apr 02, 2015
I am interested in what might be normal tire temperatures also. Last year I had two blowouts both on the right side (not at the same time). We had to change them on the interstate highway, scary. The temperature was in the 90's at the time. I have been towing a camper since 1976 and this was the only time I have had a tire problem.

This year I have purchased a TPMS so I hope see a pending problem before it is a problem.
rbpru
Explorer II
Apr 02, 2015
Do you know the temps of your RV tires?
Bull_Rider
Explorer
Apr 02, 2015
I use an infrared thermometer to shoot hub and brake drum temps during fuel or rest stops.

I would be curious what the brake drum temps were. I discovered that I had one brake drum that wasn't heating up, and I the cause, a cut brake wire.

I've also noted that the sunny side of the rig always has higher tire temps.
ScottG
Nomad
Apr 02, 2015
Looks completely normal to me.
Tachdriver
Explorer
Apr 02, 2015
Did you forget to change to summer air in your tires? :B

I would keep measuring the temps as you travel. It may be an anomaly. Over time if it runs higher try full pressure to see what you get. Maybe its in the build of that particular tire. What you could do is to swap out the tire to another position. I know this is more work but a scientific approach will alleviate some guess work.

I cancelled my reservations at My Old KY Home today since we are expecting over 1.5 of rain. Hopefully your travels will be drier.

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Tire Temps

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