Tire pressure sticker recall

[sewwhynot]

Just received new tire pressure stickers from Jayco in the recall. These new stickers say the tires should only be inflated to 50 not 65psi. The tires have been nitrogen filled at 65 from the beginning not the 50 pounds imprinted on the tires and the new sticker. Being new. I am wondering if this over inflation will affect the safety and performance of the tires. Dealer wasn't sure and Jayco says they will make good on a tire problem. I don't want to have a tire problem. I know underinflating is bad but 15 pounds seems like a lot of overage. I have a Hummingbird. Thanks.

[SouthCo]

If the sidewall on your tires say max psi of 65 than you shouldn't have a problem as you didn't go over what the psi the tire is rated for. Simply lower the pressure.

[Springhook]

My tires say 80 PSI max cold. On my most recent trip, my TPMS indicated these tires reached 95 PSI and 100 degrees. Is that normal?

[sewwhynot]

Sidewall says max psi 50. Dealer had them nitrogen inflated at 65 going off sticker not tire. Has me a bit worried.

[SouthCo]

Originally Posted by sewwhynot

Sidewall says max psi 50. Dealer had them nitrogen inflated at 65 going off sticker not tire. Has me a bit worried.

Oh so the tire sidewall says 50psi... About how many miles have you gone on them? Truthfully I'm not sure how I'd handle it. I'd rather have them over inflated by 15psi than under inflated by 15psi.

[Marcm157]

Originally Posted by Springhook

My tires say 80 PSI max cold. On my most recent trip, my TPMS indicated these tires reached 95 PSI and 100 degrees. Is that normal?

My 80 PSI tires typically will run in the high 80's PSI wise and do occasionally reach 100 degrees on VERY hot sunny days. They normally run 85 - 88 PSI and about 90 degrees on average days

[norty1]

Originally Posted by Springhook

My tires say 80 PSI max cold. On my most recent trip, my TPMS indicated these tires reached 95 PSI and 100 degrees. Is that normal?

That is normal. It will go up in proportion to your speed, ambient temp and road conditions. Some can see a difference between the sunny side and shady side.

[3'senough]

Originally Posted by norty1

That is normal. It will go up in proportion to your speed, ambient temp and road conditions. Some can see a difference between the sunny side and shady side.

+1. What you should also notice is that one side is within a few pounds and degrees of one another. If one tire is hotter than the others you have an issue with either a hub or brake in my experience. The heat transfers to the tire via the wheel.

[sewwhynot]

Originally Posted by SouthCo

Oh so the tire sidewall says 50psi... About how many miles have you gone on them? Truthfully I'm not sure how I'd handle it. I'd rather have them over inflated by 15psi than under inflated by 15psi.

Thanks...that makes me less nervous. Probably gone about 500 miles with them over. I suspect there are others affected like me.

[DocBrown]

Jayco corrected it. I've owned 3 trailers and the manuals of all 3 said to run the max PSI printed on the sidewall. I don't think running at 65 PSI for 500 miles is going to hurt a thing. Just run them at 50 now and you'll be fine.

[jadatis]

dont worry about the 15 psi overpressure.
You best keep it at 65 psi .
Once read that tires have testing standards to can stand a pressure of 2 to 3 times AT, so would mean for 50 psi that 100 to 150 psi wont destroy the tires.
Have an older document of Semperit ( Continental) in wich 1.4 times AT is allowed for standing still and then 2 times as much maximum load .
If you would fill the tire 1.4 times AT at freesing point outside temp of 32 degr F. , and the tire inside temp would rise to boiling-point of water so 212 degr F, the pressure inside tire would rise to a small 2 times AT pressure.
for your tire this would mean, fill 1.4X50 psi= 70 psi at 32 degr F., it would rise to a small 100 psi .

For special trailer tires ( ST) in earlyer days Goodyear and others prescribed 10 psi higher for speed of 75m/h instead of the 65 m/h , the maximum load is calculated for.

Nowadays they dont allow it anymore for ST and also not for LT tires.
As far as I know, for truck-tires it is still allowed, even 20 psi .
And also for normal car tires ( P-tires in Standard load and XL), they give maximum cold of between 44 and 51 psi on sidewall, and XL sometimes 60 psi, while the AT.-pressure ( comparable with your 50 psi) is standard load always 35 psi and XL always 41 psi.

Then at last to convince you that you did nothing wrong to the tires.
In Europe , Michelin and Continental have Special camper tires (Motorhomes are called campers in Europe) , wich give maxpressure of 80 psi , while they are 8 Plyrated( compare D-load) tires with AT pressure 69 psi ( so exeption to the rule of 65 psi) , Here also alowed 11 psi higher then AT.
My suspicion is that tiremakers dont allow higher then At for LT tires ( we call it C(omercial)-tyres) because then the special campers would not sell, because you can have same savety with C-tyres.

I, as "pigheaded Dutch selfdcared tirepressure-specialist", can help you with calculating a save advice pressure, but need more data.
From tires ( read from sidewall).
Maximum load or loadindex for single and dual load.
AT-pressure ( yours 50 psi)
Speedcode and or if they are ST tires.

From vehicle, can be read from same plate as pressure advices.
GAWR's ( gross axle weight ratings, is maximum allowed by law.
Howmany axles and howmany tires/axle.
And the maximum speed your use and wont go over for even a minute.
Better would be real weighed seperate axle-ends , in the loading you go on tripp,second best axleweights.

To be short, dont worry ,to laws of nature you probably need higher then 50 psi , for maximum reserve and savety.