If the OP purchased the rig new and it has taken 6 years to notice the placard and actual tire size are different, would cause me to wonder if he purchased it used. With a 2006 model trailer, the tires could easily be 2004 or 2005 manufactured dates. As mentioned above, probably time to consider replacing the tires with new ones of the size specified on the placard. If the OP purchased the rig used, the tires may have already be replaced one time. Once the rig leaves the manufacturer, they have no control over what is replaced with or without the current owner's knowledge.
joe b.
Stuart Florida
Formerly of Colorado and Alaska
Chevy 3500 DRW Dmax CC - Rockwood 8281 SS 5th Whl & 2008 Lance 845 TC www.pajbcooper.com web site
Alaska Trip 2011 posted
Colo-Utah-Ariz 2012 trip posted
"Without challenge, adventure is impossible".
alexpinca wrote: Actually my main concern is that the tires on this unit are not what the placard says they should be. Placard 235/85/R16E... the unit has 235/80/R16 tires...the Placard calls for E meaning 10 ply, the tire says 5 ply...this and the proper inflation of the tires actually on my unit is my main concern...the tires state that the psi should be whatever the mfg says on the placard but the mfg put different tires than the placard calls for.
You might have 235/85/R16E. So far you haven't said anything about that. An LR-E tire does not have to be built with 10 ply tires. That's why we don't call them 10 ply any more. An LR-E is the equivalent of what a 10 ply once was, but they are rarely built with 10 plies these days.
Also, I can guarantee your tire side wall does not simply say to follow the placard. Your tire has a maximum PSI rating. And although the wisdom can be debated, you cannot make a serious error by running at the maximum. But you could make a very serious error by running too little pressure.
I think you need to take some time and more carefully read the tire side wall.
A 2006 trailer that you "just discovered" didn't have the right tires on it? So what pressure have you been using for 6 years? Perhaps you bought the unit "used" and Keystone has no freaking idea what somebody else put on it and therefore cannot supply you with any other info. When all else fails follow the tire mfg's pressure molded into the sidewall of the tire.
The problem is that the Mission Tires that are on the unit do not give a load range...all I can find is the Mission TC108 235/80/R16...I can find nothing else that seems helpful. The tire states to use the unit placard psi but what help is that if the mfg used different tires than what should be on the unit. One of my concerns is that the tire says 5 ply when the placard shows E which means 10 ply. I am the original owner...the psi I had used was 65 because I hadn't noticed that the tires didn't match the placard.
* This post was
edited 05/04/12 10:04pm by alexpinca *
alexpinca wrote: The problem is that the Mission Tires that are on the unit do not give a load range...all I can find is the Mission TC108 235/80/R16...I can find nothing else that seems helpful. The tire states to use the unit placard psi but what help is that if the mfg used different tires than what should be on the unit. One of my concerns is that the tire says 5 ply when the placard shows E which means 10 ply. I am the original owner...the psi I had used was 65 because I hadn't noticed that the tires didn't match the placard.
Ok you are the original owner and these tires you have inflated to 65 psi have lasted 6 years. I think that is what you are saying. So why would you do anything else? They have lasted longer than their intended service life already. Replace them right away with the tire of your choice. BTW, you are way to hung up on the "ply rating". That means nothing. The only thing you should be concerned with is the mfg listed weight rating on those tires.
alexpinca wrote: Actually my main concern is that the tires on this unit are not what the placard says they should be. Placard 235/85/R16E... the unit has 235/80/R16 tires...the Placard calls for E meaning 10 ply, the tire says 5 ply...this and the proper inflation of the tires actually on my unit is my main concern...the tires state that the psi should be whatever the mfg says on the placard but the mfg put different tires than the placard calls for.
We had the exact same issue and they responded the exact same way. When replacing the tires I went with the tire that matched the sticker in BFG TA. They too are e rated and we run at max psi. If you know the exact weight riding on each tire there are tables out there that will guide you as to the adjusted pressure.
"Proper Tire Inflation.
Correct tire inflation is a key component in tire care. The recommended maximum inflation pressures for your tires are indicated on the certification label or in your owner's manual. Since RVs can be loaded with many different configurations, the load on each tire will vary. For this reason, actual air pressure required should be determined based on the load on each individual tire. Inflation pressure should be adjusted to handle the tire carrying the heaviest load, and all tires on the axle should be adjusted to this standard.
Each manufacturer provides load and inflation tables specific to their products to help you determine the correct tire inflation pressure for your vehicle's loading.
Underinflation brings a higher risk of susceptibility to damage due to road hazards, reduces casing durability, and causes a loss in fuel economy, plus uneven or irregular tire wear. Severe or prolonged underinflation brings about an increased risk of tread separation."
(my emphasis)
Keith J.
1999 Sunnybrook 27RKFS Fiver.
2005 GMC Sierra 2500HD CC/SB/DA 2WD, LBZ air cleaner, 52 gal Titan tank, Bilsteins, Line-X, Westin steps, Prodigy, Retrax cover, 16K Superglide, 5th-Airborne pin-box, Multi-vex mirrors, TST TPMS.
"Proper Tire Inflation.
Correct tire inflation is a key component in tire care. The recommended maximum inflation pressures for your tires are indicated on the certification label or in your owner's manual. Since RVs can be loaded with many different configurations, the load on each tire will vary. For this reason, actual air pressure required should be determined based on the load on each individual tire. Inflation pressure should be adjusted to handle the tire carrying the heaviest load, and all tires on the axle should be adjusted to this standard.
Each manufacturer provides load and inflation tables specific to their products to help you determine the correct tire inflation pressure for your vehicle's loading.
Underinflation brings a higher risk of susceptibility to damage due to road hazards, reduces casing durability, and causes a loss in fuel economy, plus uneven or irregular tire wear. Severe or prolonged underinflation brings about an increased risk of tread separation."
(my emphasis)
I will NOT turn this into another tire debate, but you know that is intended for RVs, not trailer service. But yet you trot it out, again.
Furthermore, this page is linked from the page you linked. Weighing your RV
Note the paragraph header Special Considerations.
"Unless trying to resolve poor ride quality problems with an RV trailer, it is recommended that trailer tires be inflated to the pressure indicated on the sidewall of the tire. Trailer tires experience significant lateral (side-to-side) loads due to vehicle sway from uneven roads or passing vehicles. Using the inflation pressure engraved on the sidewall will provide optimum load carrying capacity and minimize heat build-up."
Apparently Goodyear agrees with me. Good for them.
"Proper Tire Inflation.
Correct tire inflation is a key component in tire care. The recommended maximum inflation pressures for your tires are indicated on the certification label or in your owner's manual. Since RVs can be loaded with many different configurations, the load on each tire will vary. For this reason, actual air pressure required should be determined based on the load on each individual tire. Inflation pressure should be adjusted to handle the tire carrying the heaviest load, and all tires on the axle should be adjusted to this standard.
Each manufacturer provides load and inflation tables specific to their products to help you determine the correct tire inflation pressure for your vehicle's loading.
Underinflation brings a higher risk of susceptibility to damage due to road hazards, reduces casing durability, and causes a loss in fuel economy, plus uneven or irregular tire wear. Severe or prolonged underinflation brings about an increased risk of tread separation."
(my emphasis)
I will NOT turn this into another tire debate, but you know that is intended for RVs, not trailer service. But yet you trot it out, again.
Furthermore, this page is linked from the page you linked. Weighing your RV
Note the paragraph header Special Considerations.
"Unless trying to resolve poor ride quality problems with an RV trailer, it is recommended that trailer tires be inflated to the pressure indicated on the sidewall of the tire. Trailer tires experience significant lateral (side-to-side) loads due to vehicle sway from uneven roads or passing vehicles. Using the inflation pressure engraved on the sidewall will provide optimum load carrying capacity and minimize heat build-up."
Apparently Goodyear agrees with me. Good for them.
Well played and thanks for the link. Big difference between trailer tires and MOHO tires.
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