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05-09-2015, 09:03 AM
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#29
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Registered User
Join Date: Dec 2013
Posts: 100
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Quote:
Originally Posted by raycon9
Question for you guys.
if tires fail from the inside, what difference does if make if you cover them from the the sun?
thanks
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They don't ONLY fail from the inside; UV does deteriorate rubber.
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05-09-2015, 09:16 AM
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#30
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2009
Posts: 4,031
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Quote:
Originally Posted by Racklefratz
Why? ANY brand tire will develop cracks in the sidewalls, given enough time.
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10 Year old G670's here with no cracks showing.
May be why Good Year has a 7 year warranty on cracks & Michelin 0.
__________________
99 Discovery 34Q ISB
2014 MKS AWD EcoBoost Toad
Fulltime Since "99"
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05-09-2015, 09:40 AM
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#31
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Registered User
Join Date: Dec 2013
Posts: 100
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Quote:
Originally Posted by Triker56
10 Year old G670's here with no cracks showing.
May be why Good Year has a 7 year warranty on cracks & Michelin 0. 
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After the experience I had with tires that age, that would scare me to death.
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05-09-2015, 09:52 AM
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#32
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Registered User
Join Date: Mar 2010
Posts: 8,777
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Quote:
Originally Posted by Papa_Jim
One thing I do know.
If my tires showed sidewall cracks, they wouldn't be on my coach. I also know that the new tires that I bought to replace those cracked tires would be a different brand.
Jim
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Jim

That is precisely why my 6 then 3 1/2 year old, (per the DOT date code), Michelin tires were replaced in Dec of 2014.
Mel
'96 Safari
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05-09-2015, 04:24 PM
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#33
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 32,253
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Quote:
Originally Posted by raycon9
Question for you guys.
if tires fail from the inside, what difference does if make if you cover them from the the sun?
thanks
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I said "most" tires fail from the inside, some fail because you hit something, ran over something. The inner liner is what holds air inside the tire. Cracks allow moisture into the cords and belts which support the inner liner, moisture causes rust, rust causes belts and cords to weaken and break, when belts and cords break the inner liner fails, when the inner liner fails you have a loss of air-at an undetermined rate.
Direct sunlight will cause a tire to harden and shrink, causing cracks, unless it is rolling frequently enough to cause the tire body to release the lubricants and emollients mixed into the compound to reduce/prevent degradation from the environment.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;GS Life member,FMCA " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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05-09-2015, 04:31 PM
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#34
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 32,253
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Quote:
Originally Posted by Triker56
10 Year old G670's here with no cracks showing.
May be why Good Year has a 7 year warranty on cracks & Michelin 0. 
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I have a friend(owns an auto repair shop) who has traveled in a diesel pusher for over 40 years now. He said he always replaced his tires at 10 years, regardless of tire wear. He said he's never had a flat-ever. He also said he always runs the MH tire placard tire pressure, never any less. He does store it in climate-controlled garage when unused.
He inspected my G670's (dtd 2408), and said they should be good until they also are 10 years old unless I hit something or run over something to damage the tire.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;GS Life member,FMCA " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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