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Old 07-24-2012, 03:52 PM   #15
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Check the RV Tire Guide for weather checking page 7.
I have 10 years on my Michelin's and just changes the front tires for edge wear the rear duels are still not showing checking, keep tires off pavement when storing for winter and tires always at proper tire inflation according to tire MFG inflation tables will give you years of use.
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Old 07-24-2012, 04:56 PM   #16
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Go to Michelin Sidewall Cracking Chart - iRV2.com RV Photo Gallery . This is the Michelin chart for tire cracking. Compare what you have to the chart.
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Old 07-24-2012, 05:01 PM   #17
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Don't use "amour all", because it literally ruins sidewalls...breaking the rubber down. I had a truck that I always kept Armour All and nothing but on (my friend was a manufacturer's rep, so I got it free). It was a show truck, so it was always clean. It turned my once new tires a deep shade of brown over the course of time....and turned the rubber funny. Rubber would roll off like goo. I could literally scrape the lettering off with my finger. The truck seldom was kept outside, but saw regular use. I didn't use A.A on the matching spare, and surprise surprise, it was the only tire that wasn't f'd up.
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Old 07-24-2012, 05:06 PM   #18
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Michelin used to say to use 303, then the had some chemical of their own (looked and felt like 303 but in their bottle), Now they say just soap and water to clean them. Some products (Armor All is one) have petroleum distillates in them, some of which are harmful to the rubber.
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Old 07-26-2012, 09:11 AM   #19
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Originally Posted by Jon Mopar View Post
Don't use "amour all", because it literally ruins sidewalls...breaking the rubber down. I had a truck that I always kept Armour All and nothing but on (my friend was a manufacturer's rep, so I got it free). It was a show truck, so it was always clean. It turned my once new tires a deep shade of brown over the course of time....and turned the rubber funny. Rubber would roll off like goo. I could literally scrape the lettering off with my finger. The truck seldom was kept outside, but saw regular use. I didn't use A.A on the matching spare, and surprise surprise, it was the only tire that wasn't f'd up.
You should have gotten in touch with the company, they advertise they'll replace any product damaged by their product as long as it's a product they say it's good to use it on. Tires are definitely covered.
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Old 07-26-2012, 12:27 PM   #20
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You should have gotten in touch with the company, they advertise they'll replace any product damaged by their product as long as it's a product they say it's good to use it on. Tires are definitely covered.
Good luck with that...
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Old 07-26-2012, 12:48 PM   #21
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My OEM Michelin XRV's started showing sidewall cracking at 4 years. I kept a watch on them and the cracks did get gradually worse over time but still under the limits as mentioned above. I drive conservatively and the tires were finally replaced at 7 years with no incidents and about 34K miles. A bit of a gamble to drive on them, but I know of several MH blowout incidents on non-cracked tires, so go who can say?
I agree to be careful about sidewall dressings. I used 303 once or twice, but it did not help what was already happening. I replaced with XRV's for price and ride and availability. I am doing nothing except keeping the tires from direct sun exposure when parked. I understand driving is best for tires as the natural rubber oils work from driving heat and flexing.
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Old 08-11-2012, 07:36 PM   #22
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I recently went through the checked/cracked dilemma with Michelin and local tire shops. My tires are 4 years old per the date code. There is cracking on the sidewalls that I was concerned about.

Both Michelin shops were not concerned with the amount of cracking, but contacted Michelin at my request. Michelin responded by supporting the dealer's postion that the tires are safe at this time, and that the checking and cracking had to be quite a bit worse for them to reccomend replacment.

While I am not comfortable with the situation I am going with the recommendtation to continue running the tires and make regular stops at the tire dealer to check the tire condition.
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