High tire temperatures

[jamespatrick4]

I noticed the temps on the two curb-side tires on our rig were in the 125-130 range on our last trip out (checked with an infrared temp. gauge). This is the third-trip with the new GY G rated tires (replaced the Karriers) and the first time I noticed the temps in this range. On the first trip with the new GYs, the temps were in the 110-115 range and the ambient temps were in the 60s. The second time I didn't check the tire temps. This last time I checked the tire temps twice on both the outbound and inbound trips and each tme they were in the higher range for the curb-side tires but normal for the street side (110-115). The outside ambient temps were in the 80s on the outbound and inboud drives for this third trip. The tire pressure at departure was 110 psi.

Does anyone know why this might be happening and is this temp (125-130) a problem?

Thanks for any insight.

James

[campswithcritters]

I noticed the temps on the two curb-side tires on our rig were in the 125-130 range on our last trip out (checked with an infrared temp. gauge). This is the third-trip with the new GY G rated tires (replaced the Karriers) and the first time I noticed the temps in this range. On the first trip with the new GYs, the temps were in the 110-115 range and the ambient temps were in the 60s. The second time I didn't check the tire temps. This last time I checked the tire temps twice on both the outbound and inbound trips and each tme they were in the higher range for the curb-side tires but normal for the street side (110-115). The outside ambient temps were in the 80s on the outbound and inboud drives for this third trip. The tire pressure at departure was 110 psi.

Does anyone know why this might be happening and is this temp (125-130) a problem?

Thanks for any insight.

James

Not a problem in my opinion, mine have been that hot and a bit hotter in higher ambient temps. 2 reasons one side can be hotter in my experience, 1) Which side of the trailer is the sun on when traveling? 2) My LH sides run hotter even in rain due to heavier slides on that side Fridge, Pantry, etc on that side & higher load = higher temp.

[gmarker]

My Michelin Ribs are running between 125 (front axle) and 135 (rear axle). I wouldn't be the least bit concerned with any temp less than 150. You will see some variation side to side on hot days if the sun is shining mostly on one side. Weight distibution will also cause a variation, as will alignment and tire pressure.

[surveyman]

We don't run the G tires but use GY E tires which are at 80psi. On the GY web site is a statement the says if you tow between 65 and 75 mph you should over inflate the tires 10 psi to keep them cooler. I don't know if this is for G tires or not and was very surprised when it stated that for E tires. Could many the tires blowing out be a result of speeds over 65 and running with 80 psi?

[Mike Clay]

That temp is not a problem mine runs the same when its warm out.

[EAW]

My curbside also runs a little hotter but I figured it was because the exhaust pipe exits on that side. Must be a combination of all of the above.

[jamespatrick4]

Thanks for the replies. That certainly takes a load off my mind. I suspect they run warmer on the curb side for a variet of reasons, probably the ones cited here. I'm not sure about adding an extra 10 psi to G rated tires since that are already at 110 normally but I think I will check with GY and see what information they have. We keep our highway speeds at 65 and use cruise control when possible so these tires generally don't see anything above that.

Thanks again,

James

[Mike Clay]

Plus the crown of the road puts more pressure on the curb side of the trailer truck tires do the same thing.

[Olbird]

I have temperature and pressure sensors inside the tires on my Good Year "G's" and have seen 140 degree tire temperatures and pressures up to 125 PSI on hot days.
No problem, I have a chart that shows how pressures and temperatures work together under certain conditions and will post it I can find it.