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Old 02-06-2022, 06:28 AM   #1
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Tire pressure label

Still searching for where they’ve put the placard that is supposed to be located on my 2000 Sea Breeze that shows the manufacturer recommended tire pressures. Doesn’t seem to be in any of the logical positions. Nowhere in or on the door or door frame. Any other ideas ?
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Old 02-06-2022, 06:43 AM   #2
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On a motorhome I believe the label is usually found on the wall next to the driver's seat. Often it's under whatever is curtain is there, so you may need to move that. It should be a pretty good sized (4x6 inches or larger) yellow sticker. On mine it's easily seen, but mounted low enough that it's somewhat of a pain to read.
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Old 02-06-2022, 09:58 AM   #3
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Originally Posted by RVAJeff View Post
Still searching for where they’ve put the placard that is supposed to be located on my 2000 Sea Breeze that shows the manufacturer recommended tire pressures. Doesn’t seem to be in any of the logical positions. Nowhere in or on the door or door frame. Any other ideas ?
Air up the tires based on the max air pressure on the tires.

Then drive over to a Cat scale. Get the actual axle weights.

Find the load inflation tables for your tires.

Determine the tire pressures based on the inflation table. Adjust the tires to those nnumbers.

There are many posts out here on how to determine the pressure based on weights.
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Old 02-06-2022, 12:42 PM   #4
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Air up the tires based on the max air pressure on the tires.

Then drive over to a Cat scale. Get the actual axle weights.

Find the load inflation tables for your tires.

Determine the tire pressures based on the inflation table. Adjust the tires to those nnumbers.

There are many posts out here on how to determine the pressure based on weights.
Good advice. I would add fill up your tanks as well before you weigh, so you'll be closer to what your max weight might be. Fully loaded, watered and gassed up we came in at 6,080 front axle, 12,920 rear axle, with both myself and wife in the front seats. So we set our tire pressures based on those weights from the Toyo charts.

BTW - our tire placard is in the overhead compartment above my driver's seat.

Al
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Old 02-07-2022, 12:43 AM   #5
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In my 99 Dolphin it is on the wall in the compartment above the driver.
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Old 02-07-2022, 06:38 AM   #6
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Weight

I do have the weight from a CAT scale near me and I have used Yokohama’s online tool for determining correct pressure given the weight of my two axles. It just doesn’t make sense to me. The max pressure of the tires I just had put on is 120, but Yokohama’s tool comes up with 80 PSI for all six tires. I know the tool is working because if I add a lot more weight into the fields than I actually have, the required pressure goes up. I don’t know sh*t about tires so maybe I’m worried about nothing lol.
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Old 02-07-2022, 07:09 AM   #7
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Originally Posted by RVAJeff View Post
I do have the weight from a CAT scale near me and I have used Yokohama’s online tool for determining correct pressure given the weight of my two axles. It just doesn’t make sense to me. The max pressure of the tires I just had put on is 120, but Yokohama’s tool comes up with 80 PSI for all six tires. I know the tool is working because if I add a lot more weight into the fields than I actually have, the required pressure goes up. I don’t know sh*t about tires so maybe I’m worried about nothing lol.
I think why you're worried is that you simply don't understand all that you know about this.

First - you've done the right thing, so it's OK to stop worrying.
The only thing you might want to do (if you haven't already) is add a buffer for side to side loading imbalance in your RV. It's a near sure thing that your RV is loaded slightly heavier to one side. The CAT scale shows you the weight on each axle, but it doesn't show you the weight on each tire. So to allow for a side to side imbalance many of us will add 10% to the weight on the axle and then look up that value in the tables. For instance, using totally made up numbers, the scale shows the axle is carrying 5000 pounds, which means each (front) tire is carrying 2500 pounds. Add 10% to the 5000 for 5500 and look up the PSI needed for the tire to carry 2750 pounds. That way you've got a little bit of a 'fudge factor' built for side to side imbalance that almost certainly exists.

Second - the inflation value on the sidewall of the tire is what is required to hold the maximum weight the tire is designed to carry. You're are apparently well below that maximum weight, so you can use a lesser PSI in the tire.
Using the lesser PSI gives you a somewhat smoother ride (the tire can flex some), it will likely prevent the center of the tire from wearing too soo (the tire is sitting flat on the road and doesn't have a 'hump' in the middle), and depending on your rig it may improve handling because an 'over' inflated tire has a tendency to get stuck in the grooves in the roads, and just kind of 'jitters' around on the road surface.

On my first RV the handling was really squirrelly, the darn thing just wandered all over the road. I weighed the RV, set the inflation accordingly and the RV started tracking straight and true. It had been misbehaving just because the tires were inflated to the sidewall pressure, rather than the pressure suggest by the mfg in their chart for the load of each axel on my RV.
It also made a minor, but noticeable, improvement to the ride. It still road like a truck, but a slightly smoother riding truck.
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Old 02-07-2022, 07:23 AM   #8
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The max pressure of the tires I just had put on is 120, but Yokohama’s tool comes up with 80 PSI for all six tires.
The answer is in your sentence above ...The MAX pressure... since you are apparently no where near maximum weight that the tire can handle you won't be anywhere near max pressure as written on the sidewall. On my pickup truck the max pressure is something like 80 psi but because I rarely have anything but myself, my wife and a couple of suitcases in my truck I only run 40 psi in the tires because that's what is called for at the weight I'm running. Don't worry be happy.
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Old 02-07-2022, 07:32 AM   #9
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Still searching for where they’ve put the placard that is supposed to be located on my 2000 Sea Breeze that shows the manufacturer recommended tire pressures. Doesn’t seem to be in any of the logical positions. Nowhere in or on the door or door frame. Any other ideas ?
That label can be anywhere. On my motorhome it is on the outside wall of the motorhome inside the upper kitchen cabinet above the sink.

On a 2000 model year motorhome it may have fallen off a long time ago!

Others have guided you on ways to know the correct pressure for the tires on your motorhome.
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Old 02-08-2022, 05:43 AM   #10
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Really appreciate the detailed response. It helps! Thank you.
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Old 03-29-2022, 07:52 PM   #11
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I have tire info on tow different labels in my 2005 Sea Breeze. One is in the cabinet over the drivers side dash and the other is on the wall in the closet along the back wall of the RV. I have the 235/80R22.5 tires and the label in the coach says inflate to 85 PSI. The tires max cold PSI is 115. I went with 90 PSI all around.
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Old 03-30-2022, 02:53 AM   #12
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In response to your question about tire pressure.
Call the manufacturer - they will need the vin #.
Safe travels to you and your family
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Old 03-30-2022, 10:40 PM   #13
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In my 99 Dolphin it is on the wall in the compartment above the driver.
Same with my 2004 Dolphin.
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Old 03-31-2022, 11:43 AM   #14
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My 2000 Seabreeze, use the four corner weight to determine tire psi. The placard is to the left of the drive seat on the outside wall though I have never used it.
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