Sticker on the wall beside the driver

[azloafer]

Am I correct in assuming that the tire air pressure listed on the wall near the driver is with the coach filled with fuel and water? Thanks, Joe

[Elkhartjim]

No. That is the maximum pressure the tire is rated for whether the coach is empty or loaded with everything you own. It should match the information on the sidewall of the tire.

[bdpreece]

The correct way to set the tire pressure for your coach is to load it for a trip with full fuel and water and then take it somewhere and weigh all four corners. Write the weights down then go to http://www.rvtirepressure.com/assets/images/extrapages/Michelin_Rv_Load_Inflation.pdf
to find the correct pressure for your tires at the load you have. In the mean time you can just run the pressure shown on the side of the tire.

[cbeierl]

Actually, the pressures on the manufacturer sticker should typically be the necessary pressure to support the GVWR with the OEM tires. If you're lighter than the GVWR (max weight the chassis will support) as determined by weighing your rig (ideally separate weights for each wheel position) you may be able to run lower pressures according the the tire manufacturer's inflation tables. If you have changed the tires from the originals you'll need to consult the tire manufacturer's inflation tables to get the proper air pressure, using either the GVWR or your measured wheel weights.

[FIRE UP]

Quote:

Originally Posted by bdpreece The correct way to set the tire pressure for your coach is to load it for a trip with full fuel and water and then take it somewhere and weigh all four corners. Write the weights down then go to http://www.rvtirepressure.com/assets/images/extrapages/Michelin_Rv_Load_Inflation.pdf to find the correct pressure for your tires at the load you have. In the mean time you can just run the pressure shown on the side of the tire.

Good advice, it's the best way for you to control not only your ride quality but, tire wear and handling characteristics. But, just for additional clearity on that proceedure, and I'm quite sure bdpreece was not implying you do so, make sure that once you've accquired your weights, even if the sides are different for the same axle, you cannot, repeat, CANNOT, put different air pressures on two opposite sides. Simply put in the pressure that corresponds to the higher weight of the two tires of the same axle. Hope this helps with bdpreece's statement.
Scott

[ga traveler]

Quote:

Originally Posted by cbeierl Actually, the pressures on the manufacturer sticker should typically be the necessary pressure to support the GVWR with the OEM tires. If you're lighter than the GVWR (max weight the chassis will support) as determined by weighing your rig (ideally separate weights for each wheel position) you may be able to run lower pressures according the the tire manufacturer's inflation tables. If you have changed the tires from the originals you'll need to consult the tire manufacturer's inflation tables to get the proper air pressure, using either the GVWR or your measured wheel weights.

There is a lot of confusion on this sticker. Most of the people are just plain wrong. This guy is the only one who has it right. if you look on the sticker, you will see the vin number. This sticker is made for this coach only. It applies to this coach only. Of course the manufacturer assumes you are not overloading the coach.

[azloafer]

Quote:

Originally Posted by Elkhartjim No. That is the maximum pressure the tire is rated for whether the coach is empty or loaded with everything you own. It should match the information on the sidewall of the tire.

All the tires have 120# Max when cold stamped on them, but the wall sticker says 95# on the four rear and 110# on the two front. That's the dilemma. I recall, but not too well, that someone posted that said the wall sticker pressure was very important. I just don't recall how they used those figures.

To top it off, the dealership that we bought it from said to go 105# all the way around when the coach is filled like you would fill it for a trip. I know others would say that it must be weighed, but then what is that sticker info for that seems to be so prominently displayed by the driver?

Joe

[azloafer]

Quote:

Originally Posted by ga traveler There is a lot of confusion on this sticker. Most of the people are just plain wrong. This guy is the only one who has it right. if you look on the sticker, you will see the vin number. This sticker is made for this coach only. It applies to this coach only. Of course the manufacturer assumes you are not overloading the coach.

Thank You. I was hoping that someone would answer that works with this stuff all the time. And you did. I appreciate the post. I figured that there must be a reason why that sticker is there. I feel better now. Leaving for four days in a State Park in the AM. Happy Trails, Joe

[cbeierl]

Quote:

Originally Posted by azloafer All the tires have 120# Max when cold stamped on them, but the wall sticker says 95# on the four rear and 110# on the two front. That's the dilemma. I recall, but not too well, that someone posted that said the wall sticker pressure was very important. I just don't recall how they used those figures. To top it off, the dealership that we bought it from said to go 105# all the way around when the coach is filled like you would fill it for a trip. I know others would say that it must be weighed, but then what is that sticker info for that seems to be so prominently displayed by the driver? Joe

According to the Winnebago brochure for the 2008 Latitude you should have a GVWR of 27,910 lbs, a GAWR (front) of 10,410 lbs, and a GAWR (rear) of 17,500 lbs. These numbers should match the drivers sticker and also the one in the rear closet with all of the other coach weight numbers.

According to the Built on Freightliner info for the 2008 Latitude your coach came with Michelin XRV 255/80R 22.5 LRG tires.

Using that info and the Michelin Load and Inflation Tables it looks like you need to run 110 psi in the front tires (giving you a load capacity of 5205 lbs per side) and 95 psi in the rear tires (giving you a load capacity of 8820 libs per side). Those number match the Winnebago sticker.

If you weight your coach and you are below the maximum axle ratings (GAWR) above you may be able to run with a lower pressure if desired if the inflation table allows it.

[bdpreece]

Quote:

Originally Posted by FIRE UP Good advice, it's the best way for you to control not only your ride quality but, tire wear and handling characteristics. But, just for additional clearity on that proceedure, and I'm quite sure bdpreece was not implying you do so, make sure that once you've accquired your weights, even if the sides are different for the same axle, you cannot, repeat, CANNOT, put different air pressures on two opposite sides. Simply put in the pressure that corresponds to the higher weight of the two tires of the same axle. Hope this helps with bdpreece's statement. Scott

Absolutely. Writing directions is not one of my strong points and some times I assume people understand.

[wa8yxm]

The pressure molded into the tire is the maximum tire pressure, which is needed if the tires are loaded to the maximum (Which is also molded, it reads Max load xxxxxx pounds at max pressure of yyy psi)

The number on the sticker which appears to be near the driver is meaningless.. It is the correct pressure with 1/2 tank of fuel, no water, now waste, no cargo other than a 150 pound driver.. In short, as delivered. Soon as you load her up, it's wrong.

[cbeierl]

Quote:

Originally Posted by wa8yxm ... The number on the sticker which appears to be near the driver is meaningless.. It is the correct pressure with 1/2 tank of fuel, no water, now waste, no cargo other than a 150 pound driver.. In short, as delivered. Soon as you load her up, it's wrong.

This is WRONG. See my earlier posts...

[Pusherman]

Quote:

Originally Posted by cbeierl Actually, the pressures on the manufacturer sticker should typically be the necessary pressure to support the GVWR with the OEM tires. If you're lighter than the GVWR (max weight the chassis will support) as determined by weighing your rig (ideally separate weights for each wheel position) you may be able to run lower pressures according the the tire manufacturer's inflation tables. If you have changed the tires from the originals you'll need to consult the tire manufacturer's inflation tables to get the proper air pressure, using either the GVWR or your measured wheel weights.

Chris has it exactly correct!

[Mr_D]

Quote:

Originally Posted by Elkhartjim No. That is the maximum pressure the tire is rated for whether the coach is empty or loaded with everything you own. It should match the information on the sidewall of the tire.

Not true:
The info on the plaque is what the tire pressure should be IF the vehicle is loaded to it's GVWR with a properly distributed load.
The pressure shown on the tire sidewall is the MINIMUM pressure to support the maximum the tire will support.

From page 2 of the 06/07 Michelin RV Tire Guide: "If you look at the tire's sidewall, you'll see the maximum load capacity allowed for the size tire and load rating, and the minimum cold air inflation needed to carry the maximum load."