Reply from Goodyear on tire pressure including the Max PSI.

[CHECrappie]

A few days ago I posted the question of how to read the chart from Goodyear on their Endurance ST tires for the proper tire pressure.

www.goodyearrvtires.com/pdfs/rv_inflation.pdf

With some confusion I emailed back for clarification and here's what I received.


From: goodyear_cr@goodyear.com on 05/13/2019 09:56 AM

Sent by: Goodyear Tire & Rubber Company Consumer Relations 728 200 Innovation Way Akron, OH 44316-0001 Voice #: 800.321.2136 Fax
#:
330.796.6829

Thank you for your follow up email. The information on the chart is based per tire.


Then for more clarification I asked for example and here is the follow up based on a dual axle trailer with a weight of 2,500lbs.


From: goodyear_cr@goodyear.com on 05/14/2019 04:00 PM

Sent by: Goodyear Tire & Rubber Company Consumer Relations 728 200 Innovation Way Akron, OH 44316-0001 Voice #: 800.321.2136 Fax #:
330.796.6829

Thank you for your followup.

Based on the information you provided of 2500lbs (trailer weight), 25 PSI would be able to handle 1170 lbs per tire. The PSI has to be increased if you will be carrying more than the 2500lbs.

Please refer to the load and inflation chart for recommended PSI.

Felicia
Consumer Relations

Also

Sent by: Goodyear Tire & Rubber Company Consumer Relations 728 200 Innovation Way Akron, OH 44316-0001 Voice #: 800.321.2136 Fax #:
330.796.6829

Please refer to the load and inflation information chart to determine the total load limit per tire, www.goodyearrvtires.com/pdfs/rv_inflation.pdf

First, locate your tire size on the left hand side of the chart.

Second, locate the Inflation Pressure section near the top of chart to find out the different PSI's.

Third, locate the maximum weight allowed per tire based on the applicable PSI.

For example, 25 PSI can handle 1170lbs per tire, 30 PSI can handle 1300lbs per tire, 35 PSI can handle 1430, and so on.

I hope this helps explain how to use the inflation chart in better detail, but if not please let me know.


Since most of the members of the Board said they run Max Cold PSI, I asked about that. Here is that reply.


From: goodyear_cr@goodyear.com on 05/21/2019 10:31 AM

Sent by: Goodyear Tire & Rubber Company Consumer Relations 728 200 Innovation Way Akron, OH 44316-0001 Voice #: 800.321.2136 Fax #:
330.796.6829

We do not recommend operating a tire at maximum cold PSI. As you drive, there's friction between the tires and the road. Friction means heat — and heat means an increase in tire pressure. Tire pressure will go up approximately one pound for every 10 degrees Fahrenheit. Under some conditions that increase in pressure is enough to blow the tire! If nothing else, a tire that's overinflated will wear prematurely and will cause the car to handle and brake poorly.

Stick to your vehicle owners manual recommended tire pressure for heavy loads.

Mike
Consumer Relations

Now Mike obviously didn't read that this was for ST Endurance tires but it is alarming his reply about the Max PSI.

Just passing this along.

[bossbowman]

Thats odd because discount tire inflates them to 65psi cold. I've ran them from 60-65 for 2 years with no issues or un-even wear. Its not broke so not fixing it.

[CHECrappie]

Thats odd because discount tire inflates them to 65psi cold. I've ran them from 60-65 for 2 years with no issues or un-even wear. Its not broke so not fixing it.

I’ve been running mine at max psi (65) and I’m showing wear on the middle of the tires. That’s what started this discussion. I wasn’t aware this was rocket science.

[21XDC]

You keep posting about a 2500 pound rig. I don’t know anybody with a glass rig that weighs that little.

[bossbowman]

You keep posting about a 2500 pound rig. I don’t know anybody with a glass rig that weighs that little.

Maybe he's dividing the weight between # of tires?

[bossbowman]

I’ve been running mine at max psi (65) and I’m showing wear on the middle of the tires. That’s what started this discussion. I wasn’t aware this was rocket science.

Again I think you've got an alignment issue

[bshort]

Run mine on the travel trailer at max cold. Been that way nearly 3 years.

[CHECrappie]

It was for example only to show how to read the chart.

[RFSims]

Over inflated tires will wear in the middle of tread, underinflated tires will wear at outer edges of tread pretty much equally, alignment issues usually wears unevenly across the tread.

[Iowa Bass Hunter]

The lower the Psi in a tire the more friction that tire has. Which builds heat. When properly inflated, tires won't get hot. They get warm. I've seen what happens to under in inflated tires. It ain't pretty.

[SKfishing]

How did he go from 2500 lb trailer weight to 1170 per tire? Half of 2500 is 1250 lbs —> 28 psi ideally. For most people, trailer tires will dry rot before uneven wear becomes an issue.

[bossbowman]

For most people, trailer tires will dry rot before uneven wear becomes an issue.

Been towing for 15 years and thats been my experience, always keep an eye on the date of build code on the tire.

[ScottOz]

Tires are tires, if your wearing in the center to much pressure.

[SKfishing]

I’ve been running mine at max psi (65) and I’m showing wear on the middle of the tires. That’s what started this discussion. I wasn’t aware this was rocket science.

Wear in the center suggests an over inflated tire, which appears to be the case.

[smokewagon]

A few days ago I posted the question of how to read the chart from Goodyear on their Endurance ST tires for the proper tire pressure.

www.goodyearrvtires.com/pdfs/rv_inflation.pdf

With some confusion I emailed back for clarification and here's what I received.


From: goodyear_cr@goodyear.com on 05/13/2019 09:56 AM

Sent by: Goodyear Tire & Rubber Company Consumer Relations 728 200 Innovation Way Akron, OH 44316-0001 Voice #: 800.321.2136 Fax
#:
330.796.6829

Thank you for your follow up email. The information on the chart is based per tire.


Then for more clarification I asked for example and here is the follow up based on a dual axle trailer with a weight of 2,500lbs.


From: goodyear_cr@goodyear.com on 05/14/2019 04:00 PM

Sent by: Goodyear Tire & Rubber Company Consumer Relations 728 200 Innovation Way Akron, OH 44316-0001 Voice #: 800.321.2136 Fax #:
330.796.6829

Thank you for your followup.

Based on the information you provided of 2500lbs (trailer weight), 25 PSI would be able to handle 1170 lbs per tire. The PSI has to be increased if you will be carrying more than the 2500lbs.

Please refer to the load and inflation chart for recommended PSI.

Felicia
Consumer Relations

Also

Sent by: Goodyear Tire & Rubber Company Consumer Relations 728 200 Innovation Way Akron, OH 44316-0001 Voice #: 800.321.2136 Fax #:
330.796.6829

Please refer to the load and inflation information chart to determine the total load limit per tire, www.goodyearrvtires.com/pdfs/rv_inflation.pdf

First, locate your tire size on the left hand side of the chart.

Second, locate the Inflation Pressure section near the top of chart to find out the different PSI's.

Third, locate the maximum weight allowed per tire based on the applicable PSI.

For example, 25 PSI can handle 1170lbs per tire, 30 PSI can handle 1300lbs per tire, 35 PSI can handle 1430, and so on.

I hope this helps explain how to use the inflation chart in better detail, but if not please let me know.


Since most of the members of the Board said they run Max Cold PSI, I asked about that. Here is that reply.


From: goodyear_cr@goodyear.com on 05/21/2019 10:31 AM

Sent by: Goodyear Tire & Rubber Company Consumer Relations 728 200 Innovation Way Akron, OH 44316-0001 Voice #: 800.321.2136 Fax #:
330.796.6829

We do not recommend operating a tire at maximum cold PSI. As you drive, there's friction between the tires and the road. Friction means heat — and heat means an increase in tire pressure. Tire pressure will go up approximately one pound for every 10 degrees Fahrenheit. Under some conditions that increase in pressure is enough to blow the tire! If nothing else, a tire that's overinflated will wear prematurely and will cause the car to handle and brake poorly.

Stick to your vehicle owners manual recommended tire pressure for heavy loads.

Mike
Consumer Relations

Now Mike obviously didn't read that this was for ST Endurance tires but it is alarming his reply about the Max PSI.

Just passing this along.

The problem was asking about supporting 2500lbs. That would be the total package weight of a 17-18 foot Bass Tracker tin boat. Who tows that rig with a tandem trailer with four Endurance tires? Bada book bada boom.

[CHECrappie]

You’re missing the point. It was example only. I could’ve said any weight.

[wildturkey]

I air mine cold to recommended inflation on tire.

[TRCM]

Well, this one, again from goodyear, seems to refutes what yours says....do they even talk to each other over there ??


https://www.tirerack.com/images/tire...plications.pdf

[SKfishing]

Hull(1844 lbs) + motor(500) + trailer(800) + fuel/oil(300) + batteries/tmotor/gear(500) —> 4000+ lbs total. Less 10% tongue weight —> 3600 lbs on the tires divided by 4 tires —> 900 lbs per tire. 25 psi is probably adequate for your setup. On the high end, you likely have (2) 3500 lb rated axles or 1750 per tire —> 50 psi max. I would probably try 30-35 psi until you were able to get a more accurate weight or continued to see accelerated center wear.

[bossbowman]

Well, this one, again from goodyear, seems to refutes what yours says....do they even talk to each other over there ??


https://www.tirerack.com/images/tire...plications.pdf

Thats for Marathon tires not Endurance