I have weighed my MH, it is actual 11,340 lbs front (12,350 maximum), and 19,040 (20,000 maximum) on the rear axle with dual tires.I have the designated tires as shown below and got this chart from the Michelin website. I am dividing the actual front tire weight by 2 ( 11,340 / 2 = 5,670 lbs ). Using the chart, the front tires should be inflated to at least 100 lbs, while the rear tires ( 19,040 / 2 = 9,520 lbs ) should be 90 lbs psi.Having said all that, is that what all of you would do, or would you add extra psi and slightly overinflate? Sorry, I am new at this. 275/80R22.5 LRG 75 80 85 90 95 100 105 110Single 4725 4940 5155 5370 5510 5780 5980 6175Dual 8600 9080 9380 9770 10140 10520 10880 11350Thanks, TomPS. I hope this table posts OK, or it will be hard to read. There does not seem to be a preview option.

This chart is a little more readable. Sorry, Tom275/80R22.5 LRG 75 80 85 90 95 100 105 110 Single 4725 4940 5155 5370 5510 5780 5980 6175 Dual 8600 9080 9380 9770 10140 10520 10880 11350

Sorry, I don't know how to post the chart so it is easy to read.

In a perfect world one should weigh each "corner" of the MH. Having said that, I haven't been able to find a place where I could do that, so I did my math same as you, and added 5 psi per tire to make up for possible side-to-side weight differences. Over 40,000 miles on our tires with no problems so far (fingers crossed).

Shouldn't you divide the rear weight by 4 since it's dual?

Effy wrote:Shouldn't you divide the rear weight by 4 since it's dual?No, not on Michelin chart.

Am I reading/interpreting this correctly? Re:Tire Pressure

J-Rooster
Explorer
Sep 10, 2014
Tom, IMHO, I would experiment with tire pressures each time you go on a trip to find the right pressure that suits your needs. My recommended tire pressures on my RV were 85 psi rear and 90 psi front. I was experiencing rear tire squirm at those recommended psi. I experimented each time out and discovered that 100 psi worked best for me.
Mandalay_Parr
Explorer
Sep 10, 2014
Old-Biscuit wrote:
Mandalay Parr wrote:
I generally add about 10 lbs since they might loose that much over the course of a year.

You only check tire pressure once a year :H

Should have mentioned I have tire pressure sensors.

Jerry
Old-Biscuit
Explorer III
Sep 10, 2014
Mandalay Parr wrote:
I generally add about 10 lbs since they might loose that much over the course of a year.

You only check tire pressure once a year :H
dan-nickie
Explorer
Sep 10, 2014
I guess this helps solve your problem of how to air them up to 110 :)

I know it was a lot easier on me when I found out I didn't have to go to 110.
sloman2001
Explorer
Sep 10, 2014
Thanks for the info, I understand. I thought the 90 lbs might have been too little, but at least I am reading it right. I will go with the extra 5 lbs psi safety factor.

Thanks so much to all of you!
Tom
dan-nickie
Explorer
Sep 10, 2014
sloman2001 wrote:
I have weighed my MH, it is actual 11,340 lbs front (12,350 maximum), and 19,040 (20,000 maximum) on the rear axle with dual tires.

I have the designated tires as shown below and got this chart from the Michelin website. I am dividing the actual front tire weight by 2 ( 11,340 / 2 = 5,670 lbs ). Using the chart, the front tires should be inflated to at least 100 lbs, while the rear tires ( 19,040 / 2 = 9,520 lbs ) should be 90 lbs psi.

Having said all that, is that what all of you would do, or would you add extra psi and slightly overinflate? Sorry, I am new at this.

275/80R22.5 LRG
75 80 85 90 95 100 105 110
Single 4725 4940 5155 5370 5510 5780 5980 6175
Dual 8600 9080 9380 9770 10140 10520 10880 11350

Thanks, Tom

PS. I hope this table posts OK, or it will be hard to read. There does not seem to be a preview option.

Looks like you have a handle on it.
BTW, your pressures of 100 front, 90 rear seems to be a pretty common result after people get their weights.
Many of us add a little since we do not have 4 corner weights.
I went with 105 front and 95 rear after adding 5 lbs for safety.
Mandalay_Parr
Explorer
Sep 10, 2014
I generally add about 10 lbs since they might loose that much over the course of a year.
wolfe10
Explorer
Sep 10, 2014
Effy wrote:
Shouldn't you divide the rear weight by 4 since it's dual?

No, not on Michelin chart.
Effy
Explorer II
Sep 10, 2014
Shouldn't you divide the rear weight by 4 since it's dual?
bluegypsy
Explorer
Sep 10, 2014
In a perfect world one should weigh each "corner" of the MH. Having said that, I haven't been able to find a place where I could do that, so I did my math same as you, and added 5 psi per tire to make up for possible side-to-side weight differences. Over 40,000 miles on our tires with no problems so far (fingers crossed).