I recently replaced the d rated Goodyear marathons with the new e rated Goodyear e rated endurance tires. The tire pressure on the the original d rated marathons were 65 lbs as listed on the factory sticker but the newer e rated tires max preasure is now 80 lbs. I'm courius what others have done when upgrading to a larger capacity tire. Right now I just met in the middle with about 72-73 lbs (the wheels are rated for 80 lbs) but not sure what would be best.

Asked/answers in your other post at 4:12pm

With all trailer tires you run the maximum printed on the sidewall, so in this case it would be 80 psi

"I'm courius what others have done when upgrading to a larger capacity tire"What others have done is follow the manufacturer's recommendations...unless you know more than the....manufacturer. Multiple posts will get the same responses.

babar445 wrote:I recently replaced the d rated Goodyear marathons with the new e rated Goodyear e rated endurance tires. The tire pressure on the the original d rated marathons were 65 lbs as listed on the factory sticker but the newer e rated tires max preasure is now 80 lbs. I'm courius what others have done when upgrading to a larger capacity tire. Right now I just met in the middle with about 72-73 lbs (the wheels are rated for 80 lbs) but not sure what would be best.There are basically two advantages to moving from a D to an E tire/1. Heavier duty construction.2. More capacity.The caveat is that you only get the increased capacity if you air the Es to 80.Increased capacity IS generally desireable.In the case of a road hazard with tires just barely enough for the load, the remaining tire will be overloaded and should be replaced as well. With more capacity, this becomes less of an issue.So run them at 80.

Ron3rd wrote:With all trailer tires you run the maximum printed on the sidewall, so in this case it would be 80 psi This was the awnser I was looking for, whether it was the recommendation on the travel trailer or the recommendation of the sidewall of the tire.

Tire upgrade air preasure? | Good Sam Community

Old-Biscuit
Explorer III
Jun 21, 2017
Asked/answers in your other post at 4:12pm
Ron3rd
Explorer III
Jun 21, 2017
With all trailer tires you run the maximum printed on the sidewall, so in this case it would be 80 psi
Lwiddis
Explorer II
Jun 21, 2017
"I'm courius what others have done when upgrading to a larger capacity tire"

What others have done is follow the manufacturer's recommendations...unless you know more than the....manufacturer. Multiple posts will get the same responses.
Huntindog
Explorer
Jun 21, 2017
babar445 wrote:
I recently replaced the d rated Goodyear marathons with the new e rated Goodyear e rated endurance tires. The tire pressure on the the original d rated marathons were 65 lbs as listed on the factory sticker but the newer e rated tires max preasure is now 80 lbs. I'm courius what others have done when upgrading to a larger capacity tire. Right now I just met in the middle with about 72-73 lbs (the wheels are rated for 80 lbs) but not sure what would be best.
There are basically two advantages to moving from a D to an E tire/

1. Heavier duty construction.
2. More capacity.

The caveat is that you only get the increased capacity if you air the Es to 80.

Increased capacity IS generally desireable.
In the case of a road hazard with tires just barely enough for the load, the remaining tire will be overloaded and should be replaced as well. With more capacity, this becomes less of an issue.

So run them at 80.
babar445
Explorer
Jun 22, 2017
Ron3rd wrote:
With all trailer tires you run the maximum printed on the sidewall, so in this case it would be 80 psi

This was the awnser I was looking for, whether it was the recommendation on the travel trailer or the recommendation of the sidewall of the tire.
rbpru
Explorer II
Jun 22, 2017
My tires are rated "C" at 50 psi and rated D at 65 psi. I run them at 65 psi.

If your rims and valves will handle the pressure I would run the max.

You may notice more vibrations transferred to the TT.
Lwiddis
Explorer II
Jun 22, 2017
Huntindog, good accurate post.

"Just the answer I was looking for," Baber? Those that seek validation will mostly not get it from me particularly when they question a manufacturer's recommendation and don't know nada.
Old-Biscuit
Explorer III
Jun 22, 2017
'D' Rated with 65 psi........

Upgraded to 'E' that CAN handle 80 psi.

WHAT are the rims rated for :H
trail-explorer
Explorer
Jun 22, 2017
Ron3rd wrote:
With all trailer tires you run the maximum printed on the sidewall, so in this case it would be 80 psi

...as long as the wheels are rated for that pressure.

Did you use the same wheels are switch to a different wheel?

Old-Biscuit wrote:
'D' Rated with 65 psi........
Upgraded to 'E' that CAN handle 80 psi.
WHAT are the rims rated for :H

Ditto.
Hannibal
Explorer
Jun 22, 2017
I run the E rated tires on my truck at 65psi front, 75psi rear per the manufacturer. When I had E rated ST tires installed on our 5th wheels, I ran them at 70psi. Will do the same when tire time comes for the TT. Trailer tires are the first line of suspension. No need making them so hard they beat the trailer and it's contents to death. Broken springs can be annoying too.

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