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Old 05-02-2018, 08:14 AM   #201
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During the off-season you may want to get the weight off the tires, air down them down and keep them covered. (our trailer sits 5 months on jack stands).
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Old 05-02-2018, 08:21 AM   #202
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Might not have been run 6 years. My new set of Michlins that were installed last week have a tire that was made in late 15 and 3 made in 16. Sorta bummed me out. but sitting in the warehouse has to be easier on them than running on the road.
I would go to the tire shop and tell them I want them replaced with new tires, date codes no older than a few months. 2 years is almost a third of the life of a tire. You should have gotten a 30% discount.

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Old 05-02-2018, 08:58 AM   #203
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A&M, thanks. Wasn't anything like the damage when my ST's let go, but it's definitely a claim and trip to J/C.

Thanks for weighing in Tireman.

I might have pushed this set a little too long?
Good picture (full sunlight -except for shadow and in good focus) If I was trying to learn more about the tire condition this is what I would need. Can work around the shadow by simply taking another picture from different angle.

Separate issue. What was the measured load on that tire position? You say the tire was LR-E does that mean you set the CIP (Cold Inflation Pressure) to 80 on travel days?

You can review my blog (see my profile as I can't publish in a post) for more info on TPMS and how I suggest the warning levels be set.
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Old 05-02-2018, 10:12 AM   #204
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I would go to the tire shop and tell them I want them replaced with new tires, date codes no older than a few months. 2 years is almost a third of the life of a tire. You should have gotten a 30% discount.

Al
Please add a hearty "second" to this suggestion. Shameful that the tire shop [and Michelin?] sold you tires that old!

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Old 05-02-2018, 11:05 AM   #205
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I winterized it late November 2017, and prior to bringing home from storage checked tire pressures. They were all 65-68psi. I brought them all up to 78-80psi, and that’s what they read every morning during the trip.

Checking during fuel stops it was usually 84-86psi IIRC.
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Old 05-02-2018, 08:11 PM   #206
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I was getting very odd wear prior to this tire blowing. Here's a pic from July 2016.
I had two different tire shops inspect it. They both said it looked like bad shocks- when the tire bounces down the road at highway speed without proper "absorption" it takes 'chunks' out.


At this point, I think a proper alignment check is in order.
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Old 05-02-2018, 08:40 PM   #207
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Hopefully this is the only incident. If more people report the same separation, then Michelin owners (myself included ) have a problem. Until then, I'm not worrying about it. Glad Michelin stands by their product.
I now have a problem. I was hoping this thread had a quick death, with no more responses....wishful thinking I guess. I kept the 15 inch rims and put Michelin's LTX no E on them. Your blowouts are on 16 inch rims with higher E rating tires. Thank You for updating this thread for my safety concerns blkmajikca and forum members. I've learned a few things from you guys and tire expert. We all have each others back when it comes to safety
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Old 05-02-2018, 09:24 PM   #208
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I now have a problem. I was hoping this thread had a quick death, with no more responses....wishful thinking I guess. I kept the 15 inch rims and put Michelin's LTX no E on them. Your blowouts are on 16 inch rims with higher E rating tires. Thank You for updating this thread for my safety concerns blkmajikca and forum members. I've learned a few things from you guys and tire expert. We all have each others back when it comes to safety
Careful there are P type LTX and LT type LTX You said no E on the tires. If true that means you got P type which would carry much less load. Also P type need to be derated by 9% of the tire sidewall max load capacity when applied to a trailer of truck or SUV.
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Old 05-02-2018, 09:40 PM   #209
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I now have a problem. I was hoping this thread had a quick death, with no more responses....wishful thinking I guess. I kept the 15 inch rims and put Michelin's LTX no E on them. Your blowouts are on 16 inch rims with higher E rating tires. Thank You for updating this thread for my safety concerns blkmajikca and forum members. I've learned a few things from you guys and tire expert. We all have each others back when it comes to safety


A 15" Michelin is a "P" (passenger) tire, not an "LT" (light truck) tire. I use them on my 27FB Flying Cloud. It's important to de-rate their total capacity, dividing it by 1.1. This takes a tire with 2184# capacity down to 1985# per tire (I think a newer version than the ones I have adds another 80# or so per tire - not 100% sure...).

As my trailer loaded for camping sees about 6000# according to CAT scale tickets, on average I'm seeing 1500# per tire leaving 485# of "headroom" on each tire. That gives me an EXTRA 20+% capacity - AFTER de-rating them for use on a trailer.

I think the tire guys usually recommend 15-20% capacity room given the ability for each tire to see a different weight and some other factors.

If your trailer is heavier than that, or a single axle, these aren't the right tires for that application.

As for the OP's 16" LT E-rated tires - I'm not an expert but that picture posted of all the chunks taken out of the treads suggests there's something different than overloading going on there.

The end of this season will be 5 years for these tires on my trailer and I am considering the GYE 15" E-rated ST tires. They seem better made than the old GYMs and are made in America. We'll see!

Good luck and safe travels everyone!!
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Old 05-03-2018, 06:53 AM   #210
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Originally Posted by boondockdad View Post
I was getting very odd wear prior to this tire blowing. Here's a pic from July 2016.
I had two different tire shops inspect it. They both said it looked like bad shocks- when the tire bounces down the road at highway speed without proper "absorption" it takes 'chunks' out.


At this point, I think a proper alignment check is in order.
I do not think the wear pictured had anything to do with the failure. To my eye, that is an alignment problem, or perhaps bad shocks (as the tire shop guys said).

The wear pattern for a tire failing from a tread separation is wear at the shoulders that will grow along the shoulders and not anywhere else.
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Old 05-03-2018, 06:53 PM   #211
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As for the OP's 16" LT E-rated tires - I'm not an expert but that picture posted of all the chunks taken out of the treads suggests there's something different than overloading going on there.
The chunks that came out of the tire was the result of the peeled off tread hitting and tearing up the banana wrap.

Just to put it all in perspective, there is no doubt that, in my case, the tires were from a defective batch. Three of the 4 tires had tread separations just after the 3-year mark, even though they were well within the 7-year Michelin warranty period. My insurers agree that the batch was defective, and are proceeding accordingly.

I'll be replacing the Cooper LT tires I now have when they are 3 years old.
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Old 05-04-2018, 09:30 AM   #212
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I do not think the wear pictured had anything to do with the failure. To my eye, that is an alignment problem, or perhaps bad shocks (as the tire shop guys said).

The wear pattern for a tire failing from a tread separation is wear at the shoulders that will grow along the shoulders and not anywhere else.
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Old 05-06-2018, 05:09 PM   #213
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aaaaand number three of the four Michelin LTX's let go on the way to Jackson Center.

Taking the old girl down to repair damage from number two blowing up, I noticed a grinding sound. Thought it a bad bearing. Stopped to inspect and noted curbside front Michelin LTX M/S dated "0412" was significantly larger, and rubbing on aluminum wheel well trim. Looked like it was five minutes from blowing all to heck.

For anybody keeping score:
DATE POSITION MILES ON TIRE
07/2017 streetside front Michelin LTX M/S tread separation flat 28,700
04/2018 streetside rear Michelin LTX M/S tread separation flat 30,500
05/2018 curbside front Michelin LTX M/S belt separation inflated 31,900

all date code "0412"
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Old 05-06-2018, 05:47 PM   #214
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A bad batch of tires? Probably happens even to Michelin.

What a drag!

Thanks for the update.

Peter
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Old 05-06-2018, 06:30 PM   #215
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..... Stopped to inspect and noted curbside front Michelin LTX M/S dated "0412" was significantly larger, and rubbing on aluminum wheel well trim. Looked like it was five minutes from blowing all to heck.

For anybody keeping score:
DATE POSITION MILES ON TIRE
07/2017 streetside front Michelin LTX M/S tread separation flat 28,700
04/2018 streetside rear Michelin LTX M/S tread separation flat 30,500
05/2018 curbside front Michelin LTX M/S belt separation inflated 31,900
LTX is a marketing term for Michellin. Were those LT tires or P tires?

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Old 05-06-2018, 06:41 PM   #216
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Tire were 6 years old. It was time to replace.
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Old 05-06-2018, 07:45 PM   #217
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Tire were 6 years old. It was time to replace.
Agreed. 6 years and 30K+ miles of use and abuse...doesn't make any difference whose name is on the tire...it was time to change.
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Old 05-06-2018, 08:12 PM   #218
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What’s odd is- I had those same tires on my Suburban for 55,000 miles.
Not so much as a slow leak, and they were subject to waaay more abuse than what they got on my Airstream.

Is it sitting 6 months under load (winterized) that causes the problem?
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Old 05-06-2018, 08:15 PM   #219
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LTX is a marketing term for Michellin. Were those LT tires or P tires?

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I know they were E load rating. Not sure diff between LT and P
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Old 05-06-2018, 08:16 PM   #220
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What’s odd is- I had those same tires on my Suburban for 55,000 miles.
Not so much as a slow leak, and they were subject to waaay more abuse than what they got on my Airstream.

Is it sitting 6 months under load (winterized) that causes the problem?
Yep, and the trailer tires get an immense amount of side force while turning and backing into camp sights.
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