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Old 01-16-2016, 04:45 PM   #15
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Federal law requires that the tire’s maximum load rating be molded into the sidewall of the tire.

If you look there, you will see the maximum load allowed AND the cold air inflation pressure required to carry THAT stated MAXIMUN load.

LESS air pressure restricts the tire to carry a lighter load.

This says that the MAX air for the MAX load.

You want to go 10 to 15 psi over that !!

What am I missing ?
The fact that the RV tire manufacturers repeatedly say it's NOT the maximum pressure the tire should ever have. It's the minimum cold pressure to support the maximum weight rating of the tire. I previously posted the actual quotes and the cites for the info for people to look up if they care to do so.
I suggest you contact the various tire manufacturers and see if you can convince them to change their written information to your way of thinking.
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Old 01-16-2016, 05:35 PM   #16
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The fact that the RV tire manufacturers repeatedly say it's NOT the maximum pressure the tire should ever have. It's the minimum cold pressure to support the maximum weight rating of the tire. I previously posted the actual quotes and the cites for the info for people to look up if they care to do so.
I suggest you contact the various tire manufacturers and see if you can convince them to change their written information to your way of thinking.
So you are saying there is NO maximum tire pressure anywhere on the tire ?

I don't have a RV tire handy right now.
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Old 01-17-2016, 10:56 AM   #17
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So you are saying there is NO maximum tire pressure anywhere on the tire ?

I don't have a RV tire handy right now.
No. that's not what he's saying. The max load pressure is the maximum pressure (cold) the tire is rated for. Do not run it over the max load pressure and do not go over the max load weight the tire is rated for.

Again, go to a truck stop and get the thing weighed. Then go to the tire manufacturer's web site and look at the chart for that model/size tire. That will tell you what pressure you should be running at.

Just running a tire over inflated or at max pressure when it's not required can lead to uneven tire wear and poor traction in wet conditions.

Running a tire under inflated can cause uneven wear, heat buildup, and catastrophic tread or sidewall failure.
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Old 01-17-2016, 02:07 PM   #18
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No. that's not what he's saying. The max load pressure is the maximum pressure (cold) the tire is rated for. Do not run it over the max load pressure and do not go over the max load weight the tire is rated for.

Again, go to a truck stop and get the thing weighed. Then go to the tire manufacturer's web site and look at the chart for that model/size tire. That will tell you what pressure you should be running at.

Just running a tire over inflated or at max pressure when it's not required can lead to uneven tire wear and poor traction in wet conditions.

Running a tire under inflated can cause uneven wear, heat buildup, and catastrophic tread or sidewall failure.
He and others have said now and in the past, the markings on the tire state,

"it's NOT the maximum pressure the tire should ever have. It's the minimum cold pressure to support the maximum weight rating of the tire.

If it's the minimum pressure, there must be a maximum pressure.

I believe federal law now requires a MAXIMUM pressure be stamped on the sidewall.

My comment was a caution to NOT exceed the MAX pressure the tire can hold. It has nothing to do with the weight on it.

Anybody have an RV tire near them. Like I said, at this point in time, I don't.
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Old 01-17-2016, 02:35 PM   #19
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Not trying to be argumentative, just trying to learn but why would an RV tire be different than a passenger tire in the min/max meaning? The tires on my two cars both state that the max load of "X" is AT a max pressure of "N". It would seem and is confusing if an RV tire load ratings would be different than this. Since I sold my RV, don't have a tire to look at either.
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Old 01-17-2016, 02:54 PM   #20
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Not trying to be argumentative, just trying to learn but why would an RV tire be different than a passenger tire in the min/max meaning? The tires on my two cars both state that the max load of "X" is AT a max pressure of "N". It would seem and is confusing if an RV tire load ratings would be different than this. Since I sold my RV, don't have a tire to look at either.
Yes, the max stated on a car tire is just that, the maximum cold pressure the tire should have.
On truck/RV size tires it's the minimum cold pressure to support the maximum rating of the tire.
It's all in the sources I quoted earlier as well as on the internet for those that want to end their confusion.
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Old 01-17-2016, 03:29 PM   #21
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Yes, the max stated on a car tire is just that, the maximum cold pressure the tire should have.
On truck/RV size tires it's the minimum cold pressure to support the maximum rating of the tire.
It's all in the sources I quoted earlier as well as on the internet for those that want to end their confusion.
So I ask again, is there a maximum pressure for that tire ?

Can I put 170 psi in it. From a distance of course.

My 16 inch LT ( light TRUCK ) tires are marked "80 psi maximum".
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Old 01-17-2016, 04:00 PM   #22
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So I ask again, is there a maximum pressure for that tire ?

Can I put 170 psi in it. From a distance of course.

My 16 inch LT ( light TRUCK ) tires are marked "80 psi maximum".
Ok I found something .

The minimum pressure is the maximum pressure unless you drive under 40 mph or less, right down to storage.

If you meet the higher pressure rules, you can only add 10 psi to that number. Well something like that.

I'm still going to find an MH to read it's tires.
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Old 01-18-2016, 08:38 PM   #23
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This should help. I also included a few tire sizes.
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