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Old 07-06-2020, 09:48 PM   #1
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Tire pressure Goodyear endurance

I have a 213 hw. With 14 inch tires. Anyone running Goodyear Endurance tires?Their website says that PSI varies with weight of trailer. How are you setting yours?
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Old 07-06-2020, 10:07 PM   #2
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I have a 213 hw. With 14 inch tires. Anyone running Goodyear Endurance tires?Their website says that PSI varies with weight of trailer. How are you setting yours?
If you are putting on the OEM size tire, you go by the sticker on the side of the trailer.
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Old 07-06-2020, 10:32 PM   #3
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We have 14-inch tires on our MicroLite and just last year replaced the factory tires with Goodyear Endurance tires.

Our tire size is ST205/75-R14. Factory used Load Range C tires. We stayed with that size but went with the Load Range D tires which are rated for heavier loads and higher air pressures. I like to have a bit more tire than I need for safety.

After ensuring the rims on the camper would handle the increased tire pressure (yes rims or wheels have max pressure ratings like tires do), we inflated the tires to 65 PSI.
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Old 07-07-2020, 06:46 AM   #4
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Here's a link to Goodyear's RV tire page: https://www.goodyearrvtires.com/tire...n-loading.aspx

On the lower right you will see a link to the Inflation Table (PDF). The Endurance tires are the 1st ones listed.

I went with 50 lbs for our A213HW with ST205/75R14s based on 3370 GVWR (1685 lbs per tire).

Here's a link I found helpful in understanding this: https://www.etrailer.com/question-362571.html
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Old 07-07-2020, 07:15 AM   #5
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60-65 PSI cold in my Endurance. According to their chart I could go as low as 40PSI but I would not run them that low.
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Old 07-07-2020, 07:32 AM   #6
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Originally Posted by mtmurphy56 View Post
I have a 213 hw. With 14 inch tires. Anyone running Goodyear Endurance tires?Their website says that PSI varies with weight of trailer. How are you setting yours?
I have 215 75 14's that call for max of 65 psi. My trailer weight is less than max so I run them around 55 psi and have had no problems this last year.
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Old 07-07-2020, 07:43 AM   #7
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Thanks for the link OYO! I have a GVWR 7000 lbs on my 23’ fifth wheel! I changed the. China bombs for Good Year endurance! My original tire size is ST 205/75R14.. I decided to go
ST 215/75R14 Load D good for 2200 Lbs! I put them on new Aluminium Rims rated at 2200 lbs. will enjoy my first outing on vacation three weeks from now! I will try 65 for air pressure, then see where I will end up with eventually!
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Old 07-07-2020, 08:01 AM   #8
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I changed to Endurance and run them 62-63 PSI. I could run them at the label rating of the OEM tires @ 50PSI but you gain nothing in safety.

You don't hear of all these blowouts with car tires because there is such a large amount of capacity unused with them. Most cars weigh 4000-5000lbs yet have tires on them with 1800-2000lb load ratings. My camper is 7600 GVWR with 4 tires rated 1760 each. If I don't put enough tongue weight on the hitch the tires are overloaded. Even then they were maxed out with the OEM tires, a blowout waiting to happen.
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Old 07-07-2020, 08:49 AM   #9
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We also have a 213HW and changed to the endurance load range D R14. We inflate to 65psi. Looking at the reference material and inflation charts OYO posted it seems the etrailer reference states as long as your trailer is under the load range capacity for a given psi, you are ok. Theoretically from that chart we could go down to 55psi. My question is does the extra 10psi change the performance of the ride of the trailer? My husband usually sets the cruise at 70mph. We have never thought about going down below the 65psi.
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Old 07-07-2020, 09:04 AM   #10
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We also have a 213HW and changed to the endurance load range D R14. We inflate to 65psi. Looking at the reference material and inflation charts OYO posted it seems the etrailer reference states as long as your trailer is under the load range capacity for a given psi, you are ok. Theoretically from that chart we could go down to 55psi. My question is does the extra 10psi change the performance of the ride of the trailer? My husband usually sets the cruise at 70mph. We have never thought about going down below the 65psi.
Because of the much stiffer sidewall construction of the Endurance, you may not see much difference in ride quality with a drop of 10 PSI but you certainly may see a difference in the wear of the tread with the tire properly inflated to the load.

An underloaded tire that is inflated to the MAX PSI can cause the tread to crown and wear the center of the tread. A tire properly inflated to the load will allow the tire to conform to the correct contact patch and wear the tread evenly.
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Old 07-07-2020, 09:06 AM   #11
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Originally Posted by lcangler View Post
We also have a 213HW and changed to the endurance load range D R14. We inflate to 65psi. Looking at the reference material and inflation charts OYO posted it seems the etrailer reference states as long as your trailer is under the load range capacity for a given psi, you are ok. Theoretically from that chart we could go down to 55psi. My question is does the extra 10psi change the performance of the ride of the trailer? My husband usually sets the cruise at 70mph. We have never thought about going down below the 65psi.
Mine run good at 55psi. Total weight of truck and tt is 11,700 lbs. I'm about 1300 lbs under max weight.
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Old 07-07-2020, 10:48 AM   #12
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Because of the much stiffer sidewall construction of the Endurance, you may not see much difference in ride quality with a drop of 10 PSI but you certainly may see a difference in the wear of the tread with the tire properly inflated to the load.

An underloaded tire that is inflated to the MAX PSI can cause the tread to crown and wear the center of the tread. A tire properly inflated to the load will allow the tire to conform to the correct contact patch and wear the tread evenly.
I wondered if I could run the Endurance tires at 55-60 PSI cold without causing problems... strange wear patterns or overheating. I have downloaded the chart from Goodyear and will put in in my folder in the camper. Next trip, I will try running at 60 PSI to see how it performs. Thanks!
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Old 07-07-2020, 03:05 PM   #13
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I yust gave Luisde other topic advice of 61 psi , asuming only 10% on towbar or plate.
But If he corrects me in that , I can recalculate.

Dont use the pressure/loadcapacity list of Endurance, they are made with the old formula for diagonal tires.
In my sprradsheet, I use a formula that leads to higher pressure, and lower first ST tires maxload by 6 loadindex steps, to give it the deflection , a LT tire is calculated for.
And I first add 10% to assumed axleload.
This gives highest pressure, with max safety reserve, but still no screws tremblung loose.
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Old 07-07-2020, 03:34 PM   #14
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Dont use the pressure/loadcapacity list of Endurance, they are made with the old formula for diagonal tires.
In my sprradsheet, I use a formula that leads to higher pressure, and lower first ST tires maxload by 6 loadindex steps, to give it the deflection , a LT tire is calculated for.

Just so I understand you correctly, don't follow the instructions given by the manufacturer with all their testing and engineers, but instead some dude on the internet?
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Old 07-07-2020, 03:36 PM   #15
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I yust gave Luisde other topic advice of 61 psi , asuming only 10% on towbar or plate.

But If he corrects me in that , I can recalculate.



Dont use the pressure/loadcapacity list of Endurance, they are made with the old formula for diagonal tires.

In my sprradsheet, I use a formula that leads to higher pressure, and lower first ST tires maxload by 6 loadindex steps, to give it the deflection , a LT tire is calculated for.

And I first add 10% to assumed axleload.

This gives highest pressure, with max safety reserve, but still no screws tremblung loose.


I’m not sure why one wouldn’t follow Goodyear’s load/tire pressure load chart. I don’t understand why one puts the maximum air pressure in a tire either.
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Old 07-07-2020, 05:00 PM   #16
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Just so I understand you correctly, don't follow the instructions given by the manufacturer with all their testing and engineers, but instead some dude on the internet?
TT and 5thw- manufacturers dont do testing of tire and pressure, they yust follow P/LC lists of tire-makers, or give max pressure of tire as advice.

And that European tyremakers use a formula, that comes to higher pressure then American tyremakers, proves that even different official respected institutes , have different opinions of what is safe.

So yes, yust trust this pigheaded Dutch selfdeclared tirepressure-specialist ( ohh this dude is even european, and an amateur, but busy with tirepressure since end 2007) .
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Old 07-07-2020, 06:53 PM   #17
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TT and 5thw- manufacturers dont do testing of tire and pressure, they yust follow P/LC lists of tire-makers, or give max pressure of tire as advice.

And that European tyremakers use a formula, that comes to higher pressure then American tyremakers, proves that even different official respected institutes , have different opinions of what is safe.

So yes, yust trust this pigheaded Dutch selfdeclared tirepressure-specialist ( ohh this dude is even european, and an amateur, but busy with tirepressure since end 2007) .
I think it's just difficult for someone to accept the view of an unknown internet poster over a company that developed, tested and got DOT approval for a specific tire.

I don't doubt your credentials, i just don't know what they are.
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Old 07-07-2020, 07:15 PM   #18
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If sitting for long periods of time, I inflate them to max pressure on side wall.
if moving I inflate them to PSI shown in pressure tables.
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Old 07-07-2020, 07:24 PM   #19
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Three words:
Tire Pressure Monitor


The reason (in my opinion) that travel trailer tire incidents are always more catastrophic is that the driver rarely knows his tire (s) is getting low.


The lower the pressure the higher the temperature......until kapow! The tire disintegrates and tears up your trailer.


In a car you can usually get some tactile feel that a tire is low. Plus all newer vehicles have TPM.


YOUR mileage may vary.
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Old 07-08-2020, 08:07 AM   #20
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I have a 213 hw. With 14 inch tires. Anyone running Goodyear Endurance tires? Their website says that PSI varies with weight of trailer. How are you setting yours?
The GVWR of the camper, axle rating, and tire size/load range selection are determined by the manufacturer of the camper. Changing the tire size can have unintended consequences and is not recommended. The camper manufacturer usually recommends running your camper tires at maximum sidewall pressure for optimal handling at maximum rated weight. So running the maximum sidewall pressure all the time is safe unless you are overloaded (which is not).

However;

If you are weight checked less than maximum GVW, you can optimize tire life by setting your tire pressure to the actual load they are supporting using the published tire pressure for load charts published by the tire manufacturer. This pressure for the stated load will ensure that there is even pressure across the tire in contact with the road. These charts only care about the tire and not what is going on with your camper.

In order to have maximum tread in contact with the road surface with equal pressure on each square inch of tread, you must weight your camper loaded for camping by axle.

More pressure for the actual measured load will slightly "bulge" the tread in the center of the tread causing the center of the tread to wear faster than the sides. The upside to this is the tire will run cooler and have a lower coefficient of friction and increase your fuel economy. The downside is slightly less effective braking due to decreased tread in contact and a harsher ride inside the camper for your fine china and stemware.

Less pressure than required for the actual measured load will slightly "cup" the tread causing the sides of the tire to bear more weight than the center of the tire causing faster wear at the edges and less in the center. The single upside to this is a softer ride for your stuff. The downsides are numerous. The tire will run hotter and severely reduce the life of the tire. Braking is reduced due to the less tread in firm contact with the road. Sidewall flexing is increased and can lead to early failure of the sidewall. Fuel economy is decreased (you will use more fuel per mile) due to the increased rolling drag on the tire from tread and sidewall flex. The hotter the tire, the more squirm the tire experiences and you increase the likelihood of a slipped belt and tire failure. NOT RECOMMENDED

Loads on tandem axles can vary from front to back based on the deck angle of the camper when connected.

Once you know the actual axle load, divide it by two and enter the chart for the load and inflate the tires to the stated pressure for the load (rounded up) ON THAT AXLE . It is likely that your front axle will have less actual load than the back since most rigs I have seen run slightly nose up (especially 5th wheels).

There will also be a likelihood that if you weighted EACH tire, one side of the axle will be carrying more weight than the other. In this case BOTH tires must be inflated to the SAME pressure as the load carried by the heavy tire. NEVER have a different air pressure on the tires on the same axle.

In my opinion, and what I do, is run the max sidewall pressure COLD all the time.

1) I don't have fine china or breakable stemware in the camper.
2) I have NEVER worn out a set of tires (they usually are changed due to mishaps like a curb strike or sold the camper).
3) I like the lower fuel cost
4) I hate weighing my camper EVERY TRIP cause I never pack the same things every time.

Herk
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