Goodyear Endurance ST Tires Made in USA

[crispyboy]

Last year when I put the GY Endurance tires on I went the cheap route and put a new upgraded Carlisle tire on as the spare because the spare rim did not match the others. The upgraded Carlisle spare was only $58 - less than half the GYE. It was also a much beefier tire than the previous Carlisle tires.
If I had a matching spare rim I would have bought 5 GYE and rotated in the spare from time to time. A spare tire that does not get "exercised" will have a much shorter life due to dry rot my from my experience. I have seen quite a few tires hung on the side of a trailer that were in the midst of decomposing due to non-use and aging out. My friend tried to use the spare on his SOB trailer last summer and that spare tire lasted 10 miles.......

[OTRA15]

Originally Posted by n2916s

. . .
If the tire in question is not old or worn excessively, it is suitable as a spare.

Just to save $200 on top of an overall rig investment of well over $100,000 for most folks?

A false economy as suggested in Post #174 et seq..

That's the main point.



Cheap cheap cheap . . . IMO

[Milo1952]

brand new , never been used

[GettinAway]

Getting 15" GYEs installed today. At least on the Sendel wheels I purchased earlier. I won't get the wheels and tires on to the 23FB until next week. (Going from 14s to 15s)
On checking the tires I see this date stamp. I'm thinking they were made the 39th week of 2017 or Sept of last year. That's as good as I was hoping for. Hope to take them to Alaska in 2020.

[OTRA15]

Yup -- 3917.

https://www.tirerack.com/tires/tiret....jsp?techid=11

[GettinAway]

Got the GYEs mounted on the AS pretty easily yesterday. Took it for a test run. My place is. In the woods, I couldn’t tell how windy it was. I got out on the blacktop heading east. The west wind was practically pushing me along the road. My first thought was, wow! These tires are rolling almost so effortlessly! Ha! When I turned around and headed back into the wind, it was back to normal.
They did fit in fine without any need for cutting into the trim. Used my ramps to get tires off the ground. The chrome “covered” lugnuts and center cap all are in good shape.
Before and after.

[CapriRacer]

I think it might be time for a prediction about the Goodyear Endurance line of ST tires.

Some background: I am a retired tire engineer. In the 15 years before I retired, I worked in the warranty department, analyzing failed tires and predicting how well the latest versions were going to perform in the future. I did those predictions based on the early performance data. Here's how it was done.

For every type of tire problem, there is a predictable return pattern. In the case of balance, the returns started trickling in after about 6 months, peaked at a year, then tapered off, and by 18 months were pretty much over.

In the case of durability (what we are interested in here), the peak occurred between 3 and 4 years after production - but the first year was virtually zero, the second year had a few - and it was that second year that we could use to predict what would happen in year 3 and 4 and beyond.

The Goodyear Endurance line of ST tires was introduced in the fall of 2016. That means that last summer was the first year and this summer is the second year (and the first real data point). So if we don't hear about anyone suffering a tire failure by October 2018, we have a very strong indication that Goodyear has addressed the issue effectively.

Word of Caution: Tires fail for a variety of reasons and some of them are related to road hazards. In these very pages, many people have posted photos of failed tires that Roger and I both agree are not endurance failures, but caused by road hazards. Those should not be counted as there is very little that can be done to prevent those from happening.

[SteveSueMac]

Thanks CapriRacer - this year is the last for my Michelins (the P 15) having put them on in 2013. October ends the season so by then I can decide if I'll get the GYE 15 E load tires for the 2019 season. I'm leaning in that direction but look forward to learning more about their durability.

Point of clarification - are you using just AirForums as your sample or do you have access to data beyond this group for this purpose?

[OTRA15]

Originally Posted by CapriRacer

. . .
The Goodyear Endurance line of ST tires was introduced in the fall of 2016. That means that last summer was the first year and this summer is the second year (and the first real data point). So if we don't hear about anyone suffering a tire failure by October 2018, we have a very strong indication that Goodyear has addressed the issue effectively.
. . .

Thanks for keeping an eye on this, and for your expertise in general.

Much appreciated!

Peter

[subfan1]

CapriRacer, how accurate was the analysis when the Goodyear Marathons were introduced the first time as well as the Chinese manufactured?
Or was there a second analysis done when production moved overseas?

[GettinAway]

Thanks CapriRacer. I’ll be taking mine to Alaska and back (hopefully) sometime in the next two years. If they turn out to be a disaster, I’ll have a heads up. So far they are great. All 100 miles.

[CruizinDux]

Capri racer, thanks from here too.

We have about 7k on our gye's from the current trip, so far...3k to go. P
ressure holds steady, run cooler than the TV's mich defs. Pressure at 80 psi so far and all fine in the tt...may try 75 on the way home just to see. Keeping speed at 60-63 or so. Nice to have 330 lbs more margin/tire above the essentially no margin gym's.

Happy trails.

Bob

[Tireman9]

Originally Posted by CruizinDux

Capri racer, thanks from here too.

We have about 7k on our gye's from the current trip, so far...3k to go. P
ressure holds steady, run cooler than the TV's mich defs. Pressure at 80 psi so far and all fine in the tt...may try 75 on the way home just to see. Keeping speed at 60-63 or so. Nice to have 330 lbs more margin/tire above the essentially no margin gym's.
Happy trails.
Bob

RE 330# margin. Don't forget loadcapacity is a function of inflation. If you lower your inflation you will also lower the load capacity no matter what the tire sidewall says.

RE Temp. How are you measuring the temperatures? IR guns only get external surface which cools down fast. Can be 40 - 60 F lower than actual tire temperature.

[SteveSueMac]

Originally Posted by Tireman9

...snip...

RE Temp. How are you measuring the temperatures? IR guns only get external surface which cools down fast. Can be 40 - 60 F lower than actual tire temperature.

I know this was for someone else - but my internal sensors died and the company sent me external sensors for the valve stems. I noticed that the internal sensors ran about 30* hotter than the external ones for whatever that's worth.

[CruizinDux]

TM...gotchya. That is why i ran 80psi for most of the trip. If i understood you 15,% margin would give me the higher speed rating. I have about a 12/13% margin, but then again I only ne

Originally Posted by Tireman9

RE 330# margin. Don't forget loadcapacity is a function of inflation. If you lower your inflation you will also lower the load capacity no matter what the tire sidewall says.

RE Temp. How are you measuring the temperatures? IR guns only get external surface which cools down fast. Can be 40 - 60 F lower than actual tire temperature.

[Tireman9]

Originally Posted by SteveSueMac

I know this was for someone else - but my internal sensors died and the company sent me external sensors for the valve stems. I noticed that the internal sensors ran about 30* hotter than the external ones for whatever that's worth.

I did two posts on Internal vs External TPM sensors and one on sensoraccuracy in my blog in March if you are interested if confirmation of the temperature difference.

[Mollysdad]

Originally Posted by SteveSueMac

I noticed that the internal sensors ran about 30* hotter than the external ones for whatever that's worth.

Can we agree the tries run the same with external and internal?
Good, so internal sensors are living in the still hot air inside the rubber carcass, while the external sensors are out in the air spinning through clean air and cooling.
The value in the sensors isn't that they report accurately, but rather they show when one tire is radically different than the others and it alerts you to check why.

[SteveSueMac]

Originally Posted by Mollysdad

Can we agree the tries run the same with external and internal?

Good, so internal sensors are living in the still hot air inside the rubber carcass, while the external sensors are out in the air spinning through clean air and cooling.

The value in the sensors isn't that they report accurately, but rather they show when one tire is radically different than the others and it alerts you to check why.

Indeed - fully agree.

The nuance there was some discussion that you shouldn't see pressure rise more than X% and temps rise 30* above ambient. I remember that because I was always just within those specs with the internals and had TONS of room on temps even though the rise in pressure read the same.

[CruizinDux]

To clarify. The margin was based on 5k axel rating when infact the actual weight on the axel weighed in at around 4300 for our bambi, so the true margin was about 680 per tire or a 24% or so margin based on actual weight (which i believe was TM's method) vs rated weight max.

B
QUOTE=CruizinDux;2089400]Capri racer, thanks from here too.

We have about 7k on our gye's from the current trip, so far...3k to go. P
ressure holds steady, run cooler than the TV's mich defs. Pressure at 80 psi so far and all fine in the tt...may try 75 on the way home just to see. Keeping speed at 60-63 or so. Nice to have 330 lbs more margin/tire above the essentially no margin gym's.

Happy trails.

Bob[/QUOTE]

[CapriRacer]

Originally Posted by CapriRacer

I think it might be time for a prediction about the Goodyear Endurance line of ST tires.

Some background: I am a retired tire engineer. In the 15 years before I retired, I worked in the warranty department, analyzing failed tires and predicting how well the latest versions were going to perform in the future. I did those predictions based on the early performance data. Here's how it was done.

For every type of tire problem, there is a predictable return pattern. In the case of balance, the returns started trickling in after about 6 months, peaked at a year, then tapered off, and by 18 months were pretty much over.

In the case of durability (what we are interested in here), the peak occurred between 3 and 4 years after production - but the first year was virtually zero, the second year had a few - and it was that second year that we could use to predict what would happen in year 3 and 4 and beyond.

The Goodyear Endurance line of ST tires was introduced in the fall of 2016. That means that last summer was the first year and this summer is the second year (and the first real data point). So if we don't hear about anyone suffering a tire failure by October 2018, we have a very strong indication that Goodyear has addressed the issue effectively.

Word of Caution: Tires fail for a variety of reasons and some of them are related to road hazards. In these very pages, many people have posted photos of failed tires that Roger and I both agree are not endurance failures, but caused by road hazards. Those should not be counted as there is very little that can be done to prevent those from happening.

Here we are now at the end of summer and I have not heard of any GYE's failing (not road hazard related). That's the second summer since their introduction.

Having tracked this stuff when I was working, that was an extremely good sign. Not definitive, but highly predictive!